diff --git a/modules/@angular/compiler/src/directive_normalizer.ts b/modules/@angular/compiler/src/directive_normalizer.ts
index 1c130fd28a..564f367da6 100644
--- a/modules/@angular/compiler/src/directive_normalizer.ts
+++ b/modules/@angular/compiler/src/directive_normalizer.ts
@@ -205,7 +205,7 @@ class TemplatePreparseVisitor implements HtmlAstVisitor {
         var textContent = '';
         ast.children.forEach(child => {
           if (child instanceof HtmlTextAst) {
-            textContent += (<HtmlTextAst>child).value;
+            textContent += child.value;
           }
         });
         this.styles.push(textContent);
diff --git a/modules/@angular/compiler/src/directive_resolver.ts b/modules/@angular/compiler/src/directive_resolver.ts
index 283d6ac5b4..2c18904041 100644
--- a/modules/@angular/compiler/src/directive_resolver.ts
+++ b/modules/@angular/compiler/src/directive_resolver.ts
@@ -62,30 +62,22 @@ export class DirectiveResolver {
           } else {
             inputs.push(propName);
           }
-        }
-
-        if (a instanceof OutputMetadata) {
+        } else if (a instanceof OutputMetadata) {
           if (isPresent(a.bindingPropertyName)) {
             outputs.push(`${propName}: ${a.bindingPropertyName}`);
           } else {
             outputs.push(propName);
           }
-        }
-
-        if (a instanceof HostBindingMetadata) {
+        } else if (a instanceof HostBindingMetadata) {
           if (isPresent(a.hostPropertyName)) {
             host[`[${a.hostPropertyName}]`] = propName;
           } else {
             host[`[${propName}]`] = propName;
           }
-        }
-
-        if (a instanceof HostListenerMetadata) {
+        } else if (a instanceof HostListenerMetadata) {
           var args = isPresent(a.args) ? (<any[]>a.args).join(', ') : '';
           host[`(${a.eventName})`] = `${propName}(${args})`;
-        }
-
-        if (a instanceof QueryMetadata) {
+        } else if (a instanceof QueryMetadata) {
           queries[propName] = a;
         }
       });
diff --git a/modules/@angular/compiler/src/output/output_interpreter.ts b/modules/@angular/compiler/src/output/output_interpreter.ts
index bd08b79668..d9b35eecc9 100644
--- a/modules/@angular/compiler/src/output/output_interpreter.ts
+++ b/modules/@angular/compiler/src/output/output_interpreter.ts
@@ -63,7 +63,7 @@ function createDynamicClass(
     };
   });
   _classStmt.methods.forEach(function(method: o.ClassMethod) {
-    var paramNames = method.params.map(param => param.name);
+    const paramNames = method.params.map(param => param.name);
     // Note: use `function` instead of arrow function to capture `this`
     propertyDescriptors[method.name] = {
       writable: false,
diff --git a/modules/@angular/compiler/src/provider_parser.ts b/modules/@angular/compiler/src/provider_parser.ts
index ceaaf1315d..4f45d10071 100644
--- a/modules/@angular/compiler/src/provider_parser.ts
+++ b/modules/@angular/compiler/src/provider_parser.ts
@@ -72,7 +72,7 @@ export class ProviderElementContext {
 
     // create the providers that we know are eager first
     this._allProviders.values().forEach((provider) => {
-      var eager = provider.eager || isPresent(queriedTokens.get(provider.token));
+      const eager = provider.eager || isPresent(queriedTokens.get(provider.token));
       if (eager) {
         this._getOrCreateLocalProvider(provider.providerType, provider.token, true);
       }
@@ -102,7 +102,7 @@ export class ProviderElementContext {
 
   private _addQueryReadsTo(token: CompileTokenMetadata, queryReadTokens: CompileTokenMap<boolean>) {
     this._getQueriesFor(token).forEach((query) => {
-      var queryReadToken = isPresent(query.read) ? query.read : token;
+      const queryReadToken = isPresent(query.read) ? query.read : token;
       if (isBlank(queryReadTokens.get(queryReadToken))) {
         queryReadTokens.add(queryReadToken, true);
       }
@@ -282,7 +282,7 @@ export class AppModuleProviderParser {
   constructor(appModule: CompileAppModuleMetadata, sourceSpan: ParseSourceSpan) {
     this._allProviders = new CompileTokenMap<ProviderAst>();
     [appModule.type].concat(appModule.modules).forEach((appModuleType: CompileTypeMetadata) => {
-      var appModuleProvider = new CompileProviderMetadata(
+      const appModuleProvider = new CompileProviderMetadata(
           {token: new CompileTokenMetadata({identifier: appModuleType}), useClass: appModuleType});
       _resolveProviders(
           [appModuleProvider], ProviderAstType.PublicService, true, sourceSpan, this._errors,
@@ -297,7 +297,7 @@ export class AppModuleProviderParser {
     this._allProviders.values().forEach(
         (provider) => { this._getOrCreateLocalProvider(provider.token, provider.eager); });
     if (this._errors.length > 0) {
-      var errorString = this._errors.join('\n');
+      const errorString = this._errors.join('\n');
       throw new BaseException(`Provider parse errors:\n${errorString}`);
     }
     return this._transformedProviders.values();
@@ -415,7 +415,7 @@ function _normalizeProviders(
       if (isArray(provider)) {
         _normalizeProviders(<any[]>provider, sourceSpan, targetErrors, targetProviders);
       } else {
-        var normalizeProvider: CompileProviderMetadata;
+        let normalizeProvider: CompileProviderMetadata;
         if (provider instanceof CompileProviderMetadata) {
           normalizeProvider = provider;
         } else if (provider instanceof CompileTypeMetadata) {
diff --git a/modules/@angular/compiler/src/runtime_compiler.ts b/modules/@angular/compiler/src/runtime_compiler.ts
index abd7182daf..26a59646f7 100644
--- a/modules/@angular/compiler/src/runtime_compiler.ts
+++ b/modules/@angular/compiler/src/runtime_compiler.ts
@@ -163,7 +163,8 @@ export class RuntimeCompiler implements ComponentResolver, Compiler {
         }
       }
     });
-    let compile = () => { templates.forEach((template) => { this._compileTemplate(template); }); };
+    const compile =
+        () => { templates.forEach((template) => { this._compileTemplate(template); }); };
     if (isSync) {
       compile();
     }
@@ -212,12 +213,12 @@ export class RuntimeCompiler implements ComponentResolver, Compiler {
       modulePipes: ConcreteType<any>[]): CompiledTemplate {
     var compiledTemplate = this._compiledTemplateCache.get(type);
     if (isBlank(compiledTemplate)) {
-      var compMeta = this._metadataResolver.getDirectiveMetadata(type);
+      const compMeta = this._metadataResolver.getDirectiveMetadata(type);
       assertComponent(compMeta);
-      var viewDirectives: CompileDirectiveMetadata[] = [];
+      const viewDirectives: CompileDirectiveMetadata[] = [];
       moduleDirectives.forEach(
           (type) => viewDirectives.push(this._metadataResolver.getDirectiveMetadata(type)));
-      var viewComponentTypes: Type[] = [];
+      const viewComponentTypes: Type[] = [];
       this._metadataResolver.getViewDirectivesMetadata(type).forEach(dirOrComp => {
         if (dirOrComp.isComponent) {
           viewComponentTypes.push(dirOrComp.type.runtime);
@@ -225,8 +226,8 @@ export class RuntimeCompiler implements ComponentResolver, Compiler {
           viewDirectives.push(dirOrComp);
         }
       });
-      var precompileComponentTypes = compMeta.precompile.map((typeMeta) => typeMeta.runtime);
-      var pipes = [
+      const precompileComponentTypes = compMeta.precompile.map((typeMeta) => typeMeta.runtime);
+      const pipes = [
         ...modulePipes.map((type) => this._metadataResolver.getPipeMetadata(type)),
         ...this._metadataResolver.getViewPipesMetadata(type)
       ];
@@ -242,8 +243,8 @@ export class RuntimeCompiler implements ComponentResolver, Compiler {
       compType: Type, isHost: boolean, moduleDirectives: ConcreteType<any>[],
       modulePipes: ConcreteType<any>[],
       target: Set<CompiledTemplate> = new Set<CompiledTemplate>()): Set<CompiledTemplate> {
-    var template = isHost ? this._createCompiledHostTemplate(compType) :
-                            this._createCompiledTemplate(compType, moduleDirectives, modulePipes);
+    const template = isHost ? this._createCompiledHostTemplate(compType) :
+                              this._createCompiledTemplate(compType, moduleDirectives, modulePipes);
     if (!target.has(template)) {
       target.add(template);
       template.viewComponentTypes.forEach((compType) => {
@@ -261,22 +262,22 @@ export class RuntimeCompiler implements ComponentResolver, Compiler {
     if (template.isCompiled) {
       return;
     }
-    var compMeta = template.normalizedCompMeta;
-    var externalStylesheetsByModuleUrl = new Map<string, CompiledStylesheet>();
-    var stylesCompileResult = this._styleCompiler.compileComponent(compMeta);
+    const compMeta = template.normalizedCompMeta;
+    const externalStylesheetsByModuleUrl = new Map<string, CompiledStylesheet>();
+    const stylesCompileResult = this._styleCompiler.compileComponent(compMeta);
     stylesCompileResult.externalStylesheets.forEach(
         (r) => { externalStylesheetsByModuleUrl.set(r.meta.moduleUrl, r); });
     this._resolveStylesCompileResult(
         stylesCompileResult.componentStylesheet, externalStylesheetsByModuleUrl);
-    var viewCompMetas = template.viewComponentTypes.map(
+    const viewCompMetas = template.viewComponentTypes.map(
         (compType) => this._compiledTemplateCache.get(compType).normalizedCompMeta);
-    var parsedTemplate = this._templateParser.parse(
+    const parsedTemplate = this._templateParser.parse(
         compMeta, compMeta.template.template, template.viewDirectives.concat(viewCompMetas),
         template.viewPipes, compMeta.type.name);
-    var compileResult = this._viewCompiler.compileComponent(
+    const compileResult = this._viewCompiler.compileComponent(
         compMeta, parsedTemplate, ir.variable(stylesCompileResult.componentStylesheet.stylesVar),
         template.viewPipes);
-    var depTemplates = compileResult.dependencies.map((dep) => {
+    compileResult.dependencies.forEach((dep) => {
       let depTemplate: CompiledTemplate;
       if (dep instanceof ViewFactoryDependency) {
         let vfd = <ViewFactoryDependency>dep;
@@ -289,11 +290,10 @@ export class RuntimeCompiler implements ComponentResolver, Compiler {
         cfd.placeholder.runtime = depTemplate.proxyComponentFactory;
         cfd.placeholder.name = `compFactory_${cfd.comp.name}`;
       }
-      return depTemplate;
     });
-    var statements =
+    const statements =
         stylesCompileResult.componentStylesheet.statements.concat(compileResult.statements);
-    var factory: any;
+    let factory: any;
     if (IS_DART || !this._genConfig.useJit) {
       factory = interpretStatements(statements, compileResult.viewFactoryVar);
     } else {
diff --git a/modules/@angular/compiler/src/selector.ts b/modules/@angular/compiler/src/selector.ts
index 347f6d02b3..e2c9562b3f 100644
--- a/modules/@angular/compiler/src/selector.ts
+++ b/modules/@angular/compiler/src/selector.ts
@@ -6,7 +6,7 @@
  * found in the LICENSE file at https://angular.io/license
  */
 
-import {ListWrapper, Map} from '../src/facade/collection';
+import {ListWrapper} from '../src/facade/collection';
 import {BaseException} from '../src/facade/exceptions';
 import {RegExpMatcherWrapper, RegExpWrapper, StringWrapper, isBlank, isPresent} from '../src/facade/lang';
 
diff --git a/modules/@angular/compiler/src/shadow_css.ts b/modules/@angular/compiler/src/shadow_css.ts
index e3f5c8f263..bfb940557e 100644
--- a/modules/@angular/compiler/src/shadow_css.ts
+++ b/modules/@angular/compiler/src/shadow_css.ts
@@ -7,7 +7,7 @@
  */
 
 import {ListWrapper} from '../src/facade/collection';
-import {RegExp, RegExpMatcherWrapper, RegExpWrapper, StringWrapper, isBlank, isPresent} from '../src/facade/lang';
+import {RegExpMatcherWrapper, RegExpWrapper, StringWrapper, isBlank, isPresent} from '../src/facade/lang';
 
 /**
  * This file is a port of shadowCSS from webcomponents.js to TypeScript.
diff --git a/modules/@angular/compiler/src/style_compiler.ts b/modules/@angular/compiler/src/style_compiler.ts
index db17e4a15d..3f5d56c8e7 100644
--- a/modules/@angular/compiler/src/style_compiler.ts
+++ b/modules/@angular/compiler/src/style_compiler.ts
@@ -13,8 +13,8 @@ import {ShadowCss} from './shadow_css';
 import {UrlResolver} from './url_resolver';
 
 const COMPONENT_VARIABLE = '%COMP%';
-const HOST_ATTR = /*@ts2dart_const*/ `_nghost-${COMPONENT_VARIABLE}`;
-const CONTENT_ATTR = /*@ts2dart_const*/ `_ngcontent-${COMPONENT_VARIABLE}`;
+const HOST_ATTR = `_nghost-${COMPONENT_VARIABLE}`;
+const CONTENT_ATTR = `_ngcontent-${COMPONENT_VARIABLE}`;
 
 export class StylesCompileDependency {
   constructor(
diff --git a/modules/@angular/compiler/src/template_ast.ts b/modules/@angular/compiler/src/template_ast.ts
index ab02652fbf..2962bcc09a 100644
--- a/modules/@angular/compiler/src/template_ast.ts
+++ b/modules/@angular/compiler/src/template_ast.ts
@@ -7,9 +7,7 @@
  */
 
 import {isPresent} from '../src/facade/lang';
-
 import {AST} from './expression_parser/ast';
-
 import {CompileDirectiveMetadata, CompileTokenMetadata, CompileProviderMetadata,} from './compile_metadata';
 import {ParseSourceSpan} from './parse_util';
 import {SecurityContext} from '@angular/core';
diff --git a/modules/@angular/core/src/linker/app_module_factory.ts b/modules/@angular/core/src/linker/app_module_factory.ts
index bc66577875..9d933163a4 100644
--- a/modules/@angular/core/src/linker/app_module_factory.ts
+++ b/modules/@angular/core/src/linker/app_module_factory.ts
@@ -9,7 +9,6 @@
 import {Injector, THROW_IF_NOT_FOUND} from '../di/injector';
 import {unimplemented} from '../facade/exceptions';
 import {ConcreteType} from '../facade/lang';
-
 import {ComponentFactory} from './component_factory';
 import {CodegenComponentFactoryResolver, ComponentFactoryResolver} from './component_factory_resolver';
 
diff --git a/modules/@angular/core/src/linker/component_factory.ts b/modules/@angular/core/src/linker/component_factory.ts
index 83841df95d..fc7647151d 100644
--- a/modules/@angular/core/src/linker/component_factory.ts
+++ b/modules/@angular/core/src/linker/component_factory.ts
@@ -9,11 +9,10 @@
 import {ChangeDetectorRef} from '../change_detection/change_detection';
 import {Injector} from '../di/injector';
 import {unimplemented} from '../facade/exceptions';
-import {Type, isBlank, isPresent} from '../facade/lang';
-
+import {Type, isBlank} from '../facade/lang';
 import {AppElement} from './element';
 import {ElementRef} from './element_ref';
-import {ViewRef, ViewRef_} from './view_ref';
+import {ViewRef} from './view_ref';
 import {ViewUtils} from './view_utils';
 
 
@@ -80,12 +79,11 @@ export class ComponentRef_<C> extends ComponentRef<C> {
   onDestroy(callback: Function): void { this.hostView.onDestroy(callback); }
 }
 
-
 /**
  * @experimental
  * @ts2dart_const
  */
-const EMPTY_CONTEXT = /*@ts2dart_const*/ new Object();
+const EMPTY_CONTEXT = new Object();
 
 /**
  * @stable
diff --git a/modules/@angular/core/src/linker/component_factory_resolver.ts b/modules/@angular/core/src/linker/component_factory_resolver.ts
index 5c27dd0079..63913bbc0c 100644
--- a/modules/@angular/core/src/linker/component_factory_resolver.ts
+++ b/modules/@angular/core/src/linker/component_factory_resolver.ts
@@ -6,13 +6,10 @@
  * found in the LICENSE file at https://angular.io/license
  */
 
-import {Inject, OpaqueToken, Optional, SkipSelf} from '../di';
 import {BaseException} from '../facade/exceptions';
 import {ConcreteType, stringify} from '../facade/lang';
-
 import {ComponentFactory} from './component_factory';
 
-
 /**
  * @stable
  */
diff --git a/modules/@angular/core/src/linker/component_resolver.ts b/modules/@angular/core/src/linker/component_resolver.ts
index 2e44565fb6..910efa46bf 100644
--- a/modules/@angular/core/src/linker/component_resolver.ts
+++ b/modules/@angular/core/src/linker/component_resolver.ts
@@ -12,10 +12,8 @@ import {PromiseWrapper} from '../facade/async';
 import {BaseException} from '../facade/exceptions';
 import {Type, isBlank, isString, stringify} from '../facade/lang';
 import {reflector} from '../reflection/reflection';
-
 import {ComponentFactory} from './component_factory';
 
-
 /**
  * Low-level service for loading {@link ComponentFactory}s, which
  * can later be used to create and render a Component instance.
diff --git a/modules/@angular/core/src/linker/debug_context.ts b/modules/@angular/core/src/linker/debug_context.ts
index ce2eec9c98..ee229c9a6e 100644
--- a/modules/@angular/core/src/linker/debug_context.ts
+++ b/modules/@angular/core/src/linker/debug_context.ts
@@ -7,7 +7,7 @@
  */
 
 import {Injector} from '../di';
-import {ListWrapper, StringMapWrapper} from '../facade/collection';
+import {StringMapWrapper} from '../facade/collection';
 import {isBlank, isPresent} from '../facade/lang';
 import {RenderDebugInfo} from '../render/api';
 
@@ -51,7 +51,7 @@ export class DebugContext implements RenderDebugInfo {
   }
   get injector(): Injector { return this._view.injector(this._nodeIndex); }
   get renderNode(): any {
-    if (isPresent(this._nodeIndex) && isPresent(this._view.allNodes)) {
+    if (isPresent(this._nodeIndex) && this._view.allNodes) {
       return this._view.allNodes[this._nodeIndex];
     } else {
       return null;
@@ -69,17 +69,15 @@ export class DebugContext implements RenderDebugInfo {
     var staticNodeInfo = this._staticNodeInfo;
     if (isPresent(staticNodeInfo)) {
       var refs = staticNodeInfo.refTokens;
-      StringMapWrapper.forEach(
-          refs, (refToken: any /** TODO #9100 */, refName: any /** TODO #9100 */) => {
-            var varValue: any /** TODO #9100 */;
-            if (isBlank(refToken)) {
-              varValue =
-                  isPresent(this._view.allNodes) ? this._view.allNodes[this._nodeIndex] : null;
-            } else {
-              varValue = this._view.injectorGet(refToken, this._nodeIndex, null);
-            }
-            varValues[refName] = varValue;
-          });
+      StringMapWrapper.forEach(refs, (refToken: any, refName: string) => {
+        let varValue: any;
+        if (isBlank(refToken)) {
+          varValue = this._view.allNodes ? this._view.allNodes[this._nodeIndex] : null;
+        } else {
+          varValue = this._view.injectorGet(refToken, this._nodeIndex, null);
+        }
+        varValues[refName] = varValue;
+      });
     }
     return varValues;
   }
diff --git a/modules/@angular/core/src/linker/dynamic_component_loader.ts b/modules/@angular/core/src/linker/dynamic_component_loader.ts
index 2ef6030ed8..7b58353461 100644
--- a/modules/@angular/core/src/linker/dynamic_component_loader.ts
+++ b/modules/@angular/core/src/linker/dynamic_component_loader.ts
@@ -6,12 +6,8 @@
  * found in the LICENSE file at https://angular.io/license
  */
 
-import {Injectable} from '../di/decorators';
-import {Injector} from '../di/injector';
-import {ReflectiveInjector} from '../di/reflective_injector';
-import {ResolvedReflectiveProvider} from '../di/reflective_provider';
+import {Injectable, Injector, ReflectiveInjector, ResolvedReflectiveProvider} from '../di';
 import {Type, isPresent} from '../facade/lang';
-
 import {ComponentRef} from './component_factory';
 import {ComponentResolver} from './component_resolver';
 import {ViewContainerRef} from './view_container_ref';
diff --git a/modules/@angular/core/src/linker/template_ref.ts b/modules/@angular/core/src/linker/template_ref.ts
index 7c461c6702..f93bb07189 100644
--- a/modules/@angular/core/src/linker/template_ref.ts
+++ b/modules/@angular/core/src/linker/template_ref.ts
@@ -7,7 +7,6 @@
  */
 
 import {isBlank} from '../facade/lang';
-
 import {AppElement} from './element';
 import {ElementRef} from './element_ref';
 import {AppView} from './view';
diff --git a/modules/@angular/core/src/linker/view.ts b/modules/@angular/core/src/linker/view.ts
index d7ca8f0f76..2a3a3b2993 100644
--- a/modules/@angular/core/src/linker/view.ts
+++ b/modules/@angular/core/src/linker/view.ts
@@ -7,27 +7,21 @@
  */
 
 import {ObservableWrapper} from '../facade/async';
-import {ListWrapper, Map, MapWrapper, StringMapWrapper} from '../facade/collection';
-import {Type, isArray, isBlank, isNumber, isPresent, isPrimitive, isString, stringify} from '../facade/lang';
-import {RenderComponentType, RenderDebugInfo, Renderer, RootRenderer} from '../render/api';
-
+import {ListWrapper} from '../facade/collection';
+import {isPresent} from '../facade/lang';
+import {RenderComponentType, RenderDebugInfo, Renderer} from '../render/api';
 import {AppElement} from './element';
 import {ViewRef_} from './view_ref';
 import {ViewType} from './view_type';
-import {ViewUtils, arrayLooseIdentical, ensureSlotCount, flattenNestedViewRenderNodes, mapLooseIdentical} from './view_utils';
-
-import {ChangeDetectorRef, ChangeDetectionStrategy, ChangeDetectorStatus,} from '../change_detection/change_detection';
+import {ViewUtils, ensureSlotCount, flattenNestedViewRenderNodes} from './view_utils';
+import {ChangeDetectorRef, ChangeDetectorStatus,} from '../change_detection/change_detection';
 import {wtfCreateScope, wtfLeave, WtfScopeFn} from '../profile/profile';
 import {ExpressionChangedAfterItHasBeenCheckedException, ViewDestroyedException, ViewWrappedException} from './exceptions';
 import {StaticNodeDebugInfo, DebugContext} from './debug_context';
 import {ElementInjector} from './element_injector';
 import {Injector} from '../di/injector';
-
-import {AUTO_STYLE} from '../animation/metadata';
 import {AnimationPlayer} from '../animation/animation_player';
 import {AnimationGroupPlayer} from '../animation/animation_group_player';
-import {AnimationKeyframe} from '../animation/animation_keyframe';
-import {AnimationStyles} from '../animation/animation_styles';
 import {ViewAnimationMap} from '../animation/view_animation_map';
 
 var _scope_check: WtfScopeFn = wtfCreateScope(`AppView#check(ascii id)`);
@@ -99,7 +93,7 @@ export abstract class AppView<T> {
   create(context: T, givenProjectableNodes: Array<any|any[]>, rootSelectorOrNode: string|any):
       AppElement {
     this.context = context;
-    var projectableNodes: any /** TODO #9100 */;
+    var projectableNodes: any[];
     switch (this.type) {
       case ViewType.COMPONENT:
         projectableNodes = ensureSlotCount(givenProjectableNodes, this.componentType.slotCount);
@@ -141,7 +135,7 @@ export abstract class AppView<T> {
 
   selectOrCreateHostElement(
       elementName: string, rootSelectorOrNode: string|any, debugInfo: RenderDebugInfo): any {
-    var hostElement: any /** TODO #9100 */;
+    var hostElement: any;
     if (isPresent(rootSelectorOrNode)) {
       hostElement = this.renderer.selectRootElement(rootSelectorOrNode, debugInfo);
     } else {
@@ -405,7 +399,7 @@ export class DebugAppView<T> extends AppView<T> {
 
   eventHandler(cb: Function): Function {
     var superHandler = super.eventHandler(cb);
-    return (event: any /** TODO #9100 */) => {
+    return (event: any) => {
       this._resetDebug();
       try {
         return superHandler(event);
@@ -418,7 +412,7 @@ export class DebugAppView<T> extends AppView<T> {
 }
 
 function _findLastRenderNode(node: any): any {
-  var lastNode: any /** TODO #9100 */;
+  var lastNode: any;
   if (node instanceof AppElement) {
     var appEl = <AppElement>node;
     lastNode = appEl.nativeElement;
diff --git a/modules/@angular/core/src/linker/view_container_ref.ts b/modules/@angular/core/src/linker/view_container_ref.ts
index 828432fddf..c2135e3ebd 100644
--- a/modules/@angular/core/src/linker/view_container_ref.ts
+++ b/modules/@angular/core/src/linker/view_container_ref.ts
@@ -11,7 +11,6 @@ import {ListWrapper} from '../facade/collection';
 import {unimplemented} from '../facade/exceptions';
 import {isPresent} from '../facade/lang';
 import {WtfScopeFn, wtfCreateScope, wtfLeave} from '../profile/profile';
-
 import {ComponentFactory, ComponentRef} from './component_factory';
 import {AppElement} from './element';
 import {ElementRef} from './element_ref';
diff --git a/modules/@angular/core/src/linker/view_ref.ts b/modules/@angular/core/src/linker/view_ref.ts
index b27a808156..1f0eacd908 100644
--- a/modules/@angular/core/src/linker/view_ref.ts
+++ b/modules/@angular/core/src/linker/view_ref.ts
@@ -7,12 +7,10 @@
  */
 
 import {ChangeDetectorRef} from '../change_detection/change_detector_ref';
-import {ChangeDetectionStrategy, ChangeDetectorStatus} from '../change_detection/constants';
+import {ChangeDetectorStatus} from '../change_detection/constants';
 import {unimplemented} from '../facade/exceptions';
-
 import {AppView} from './view';
 
-
 /**
  * @stable
  */
@@ -84,7 +82,7 @@ export abstract class EmbeddedViewRef<C> extends ViewRef {
   /**
    * Destroys the view and all of the data structures associated with it.
    */
-  abstract destroy(): any /** TODO #9100 */;
+  abstract destroy(): void;
 }
 
 export class ViewRef_<C> implements EmbeddedViewRef<C>, ChangeDetectorRef {
diff --git a/modules/@angular/core/src/linker/view_utils.ts b/modules/@angular/core/src/linker/view_utils.ts
index c198695ac4..f7bbd07a35 100644
--- a/modules/@angular/core/src/linker/view_utils.ts
+++ b/modules/@angular/core/src/linker/view_utils.ts
@@ -10,13 +10,12 @@ import {APP_ID} from '../application_tokens';
 import {devModeEqual} from '../change_detection/change_detection';
 import {UNINITIALIZED} from '../change_detection/change_detection_util';
 import {Inject, Injectable} from '../di/decorators';
-import {ListWrapper, StringMapWrapper} from '../facade/collection';
+import {ListWrapper} from '../facade/collection';
 import {BaseException} from '../facade/exceptions';
 import {isBlank, isPresent, looseIdentical} from '../facade/lang';
 import {ViewEncapsulation} from '../metadata/view';
 import {RenderComponentType, Renderer, RootRenderer} from '../render/api';
 import {SanitizationService} from '../security';
-
 import {AppElement} from './element';
 import {ExpressionChangedAfterItHasBeenCheckedException} from './exceptions';
 
@@ -71,10 +70,10 @@ function _flattenNestedViewRenderNodes(nodes: any[], renderNodes: any[]): any[]
   return renderNodes;
 }
 
-const EMPTY_ARR: any[] /** TODO #9100 */ = /*@ts2dart_const*/[];
+const EMPTY_ARR: any[] = /*@ts2dart_const*/[];
 
 export function ensureSlotCount(projectableNodes: any[][], expectedSlotCount: number): any[][] {
-  var res: any /** TODO #9100 */;
+  var res: any[][];
   if (isBlank(projectableNodes)) {
     res = EMPTY_ARR;
   } else if (projectableNodes.length < expectedSlotCount) {
@@ -144,41 +143,17 @@ export function checkBinding(throwOnChange: boolean, oldValue: any, newValue: an
   }
 }
 
-export function arrayLooseIdentical(a: any[], b: any[]): boolean {
-  if (a.length != b.length) return false;
-  for (var i = 0; i < a.length; ++i) {
-    if (!looseIdentical(a[i], b[i])) return false;
-  }
-  return true;
-}
-
-export function mapLooseIdentical<V>(m1: {[key: string]: V}, m2: {[key: string]: V}): boolean {
-  var k1 = StringMapWrapper.keys(m1);
-  var k2 = StringMapWrapper.keys(m2);
-  if (k1.length != k2.length) {
-    return false;
-  }
-  var key: any /** TODO #9100 */;
-  for (var i = 0; i < k1.length; i++) {
-    key = k1[i];
-    if (!looseIdentical(m1[key], m2[key])) {
-      return false;
-    }
-  }
-  return true;
-}
-
 export function castByValue<T>(input: any, value: T): T {
   return <T>input;
 }
 
-export const EMPTY_ARRAY: any[] /** TODO #9100 */ = /*@ts2dart_const*/[];
-export const EMPTY_MAP = /*@ts2dart_const*/ {};
+export const EMPTY_ARRAY: any[] = [];
+export const EMPTY_MAP = {};
 
 export function pureProxy1<P0, R>(fn: (p0: P0) => R): (p0: P0) => R {
-  var result: R;
-  var v0: any /** TODO #9100 */;
-  v0 = UNINITIALIZED;
+  let result: R;
+  let v0: any = UNINITIALIZED;
+
   return (p0) => {
     if (!looseIdentical(v0, p0)) {
       v0 = p0;
@@ -189,9 +164,10 @@ export function pureProxy1<P0, R>(fn: (p0: P0) => R): (p0: P0) => R {
 }
 
 export function pureProxy2<P0, P1, R>(fn: (p0: P0, p1: P1) => R): (p0: P0, p1: P1) => R {
-  var result: R;
-  var v0: any /** TODO #9100 */, v1: any /** TODO #9100 */;
-  v0 = v1 = UNINITIALIZED;
+  let result: R;
+  let v0: any = UNINITIALIZED;
+  let v1: any = UNINITIALIZED;
+
   return (p0, p1) => {
     if (!looseIdentical(v0, p0) || !looseIdentical(v1, p1)) {
       v0 = p0;
@@ -204,9 +180,11 @@ export function pureProxy2<P0, P1, R>(fn: (p0: P0, p1: P1) => R): (p0: P0, p1: P
 
 export function pureProxy3<P0, P1, P2, R>(fn: (p0: P0, p1: P1, p2: P2) => R): (
     p0: P0, p1: P1, p2: P2) => R {
-  var result: R;
-  var v0: any /** TODO #9100 */, v1: any /** TODO #9100 */, v2: any /** TODO #9100 */;
-  v0 = v1 = v2 = UNINITIALIZED;
+  let result: R;
+  let v0: any = UNINITIALIZED;
+  let v1: any = UNINITIALIZED;
+  let v2: any = UNINITIALIZED;
+
   return (p0, p1, p2) => {
     if (!looseIdentical(v0, p0) || !looseIdentical(v1, p1) || !looseIdentical(v2, p2)) {
       v0 = p0;
@@ -220,9 +198,8 @@ export function pureProxy3<P0, P1, P2, R>(fn: (p0: P0, p1: P1, p2: P2) => R): (
 
 export function pureProxy4<P0, P1, P2, P3, R>(fn: (p0: P0, p1: P1, p2: P2, p3: P3) => R): (
     p0: P0, p1: P1, p2: P2, p3: P3) => R {
-  var result: R;
-  var v0: any /** TODO #9100 */, v1: any /** TODO #9100 */, v2: any /** TODO #9100 */,
-      v3: any /** TODO #9100 */;
+  let result: R;
+  let v0: any, v1: any, v2: any, v3: any;
   v0 = v1 = v2 = v3 = UNINITIALIZED;
   return (p0, p1, p2, p3) => {
     if (!looseIdentical(v0, p0) || !looseIdentical(v1, p1) || !looseIdentical(v2, p2) ||
@@ -240,9 +217,8 @@ export function pureProxy4<P0, P1, P2, P3, R>(fn: (p0: P0, p1: P1, p2: P2, p3: P
 export function pureProxy5<P0, P1, P2, P3, P4, R>(
     fn: (p0: P0, p1: P1, p2: P2, p3: P3, p4: P4) => R): (p0: P0, p1: P1, p2: P2, p3: P3, p4: P4) =>
     R {
-  var result: R;
-  var v0: any /** TODO #9100 */, v1: any /** TODO #9100 */, v2: any /** TODO #9100 */,
-      v3: any /** TODO #9100 */, v4: any /** TODO #9100 */;
+  let result: R;
+  let v0: any, v1: any, v2: any, v3: any, v4: any;
   v0 = v1 = v2 = v3 = v4 = UNINITIALIZED;
   return (p0, p1, p2, p3, p4) => {
     if (!looseIdentical(v0, p0) || !looseIdentical(v1, p1) || !looseIdentical(v2, p2) ||
@@ -262,9 +238,8 @@ export function pureProxy5<P0, P1, P2, P3, P4, R>(
 export function pureProxy6<P0, P1, P2, P3, P4, P5, R>(
     fn: (p0: P0, p1: P1, p2: P2, p3: P3, p4: P4, p5: P5) =>
         R): (p0: P0, p1: P1, p2: P2, p3: P3, p4: P4, p5: P5) => R {
-  var result: R;
-  var v0: any /** TODO #9100 */, v1: any /** TODO #9100 */, v2: any /** TODO #9100 */,
-      v3: any /** TODO #9100 */, v4: any /** TODO #9100 */, v5: any /** TODO #9100 */;
+  let result: R;
+  let v0: any, v1: any, v2: any, v3: any, v4: any, v5: any;
   v0 = v1 = v2 = v3 = v4 = v5 = UNINITIALIZED;
   return (p0, p1, p2, p3, p4, p5) => {
     if (!looseIdentical(v0, p0) || !looseIdentical(v1, p1) || !looseIdentical(v2, p2) ||
@@ -284,10 +259,8 @@ export function pureProxy6<P0, P1, P2, P3, P4, P5, R>(
 export function pureProxy7<P0, P1, P2, P3, P4, P5, P6, R>(
     fn: (p0: P0, p1: P1, p2: P2, p3: P3, p4: P4, p5: P5, p6: P6) =>
         R): (p0: P0, p1: P1, p2: P2, p3: P3, p4: P4, p5: P5, p6: P6) => R {
-  var result: R;
-  var v0: any /** TODO #9100 */, v1: any /** TODO #9100 */, v2: any /** TODO #9100 */,
-      v3: any /** TODO #9100 */, v4: any /** TODO #9100 */, v5: any /** TODO #9100 */,
-      v6: any /** TODO #9100 */;
+  let result: R;
+  let v0: any, v1: any, v2: any, v3: any, v4: any, v5: any, v6: any;
   v0 = v1 = v2 = v3 = v4 = v5 = v6 = UNINITIALIZED;
   return (p0, p1, p2, p3, p4, p5, p6) => {
     if (!looseIdentical(v0, p0) || !looseIdentical(v1, p1) || !looseIdentical(v2, p2) ||
@@ -309,10 +282,8 @@ export function pureProxy7<P0, P1, P2, P3, P4, P5, P6, R>(
 export function pureProxy8<P0, P1, P2, P3, P4, P5, P6, P7, R>(
     fn: (p0: P0, p1: P1, p2: P2, p3: P3, p4: P4, p5: P5, p6: P6, p7: P7) =>
         R): (p0: P0, p1: P1, p2: P2, p3: P3, p4: P4, p5: P5, p6: P6, p7: P7) => R {
-  var result: R;
-  var v0: any /** TODO #9100 */, v1: any /** TODO #9100 */, v2: any /** TODO #9100 */,
-      v3: any /** TODO #9100 */, v4: any /** TODO #9100 */, v5: any /** TODO #9100 */,
-      v6: any /** TODO #9100 */, v7: any /** TODO #9100 */;
+  let result: R;
+  let v0: any, v1: any, v2: any, v3: any, v4: any, v5: any, v6: any, v7: any;
   v0 = v1 = v2 = v3 = v4 = v5 = v6 = v7 = UNINITIALIZED;
   return (p0, p1, p2, p3, p4, p5, p6, p7) => {
     if (!looseIdentical(v0, p0) || !looseIdentical(v1, p1) || !looseIdentical(v2, p2) ||
@@ -335,10 +306,8 @@ export function pureProxy8<P0, P1, P2, P3, P4, P5, P6, P7, R>(
 export function pureProxy9<P0, P1, P2, P3, P4, P5, P6, P7, P8, R>(
     fn: (p0: P0, p1: P1, p2: P2, p3: P3, p4: P4, p5: P5, p6: P6, p7: P7, p8: P8) =>
         R): (p0: P0, p1: P1, p2: P2, p3: P3, p4: P4, p5: P5, p6: P6, p7: P7, p8: P8) => R {
-  var result: R;
-  var v0: any /** TODO #9100 */, v1: any /** TODO #9100 */, v2: any /** TODO #9100 */,
-      v3: any /** TODO #9100 */, v4: any /** TODO #9100 */, v5: any /** TODO #9100 */,
-      v6: any /** TODO #9100 */, v7: any /** TODO #9100 */, v8: any /** TODO #9100 */;
+  let result: R;
+  let v0: any, v1: any, v2: any, v3: any, v4: any, v5: any, v6: any, v7: any, v8: any;
   v0 = v1 = v2 = v3 = v4 = v5 = v6 = v7 = v8 = UNINITIALIZED;
   return (p0, p1, p2, p3, p4, p5, p6, p7, p8) => {
     if (!looseIdentical(v0, p0) || !looseIdentical(v1, p1) || !looseIdentical(v2, p2) ||
@@ -362,11 +331,8 @@ export function pureProxy9<P0, P1, P2, P3, P4, P5, P6, P7, P8, R>(
 export function pureProxy10<P0, P1, P2, P3, P4, P5, P6, P7, P8, P9, R>(
     fn: (p0: P0, p1: P1, p2: P2, p3: P3, p4: P4, p5: P5, p6: P6, p7: P7, p8: P8, p9: P9) =>
         R): (p0: P0, p1: P1, p2: P2, p3: P3, p4: P4, p5: P5, p6: P6, p7: P7, p8: P8, p9: P9) => R {
-  var result: R;
-  var v0: any /** TODO #9100 */, v1: any /** TODO #9100 */, v2: any /** TODO #9100 */,
-      v3: any /** TODO #9100 */, v4: any /** TODO #9100 */, v5: any /** TODO #9100 */,
-      v6: any /** TODO #9100 */, v7: any /** TODO #9100 */, v8: any /** TODO #9100 */,
-      v9: any /** TODO #9100 */;
+  let result: R;
+  let v0: any, v1: any, v2: any, v3: any, v4: any, v5: any, v6: any, v7: any, v8: any, v9: any;
   v0 = v1 = v2 = v3 = v4 = v5 = v6 = v7 = v8 = v9 = UNINITIALIZED;
   return (p0, p1, p2, p3, p4, p5, p6, p7, p8, p9) => {
     if (!looseIdentical(v0, p0) || !looseIdentical(v1, p1) || !looseIdentical(v2, p2) ||
diff --git a/tools/public_api_guard/core/index.d.ts b/tools/public_api_guard/core/index.d.ts
index 926270a5ac..2e9e566ea4 100644
--- a/tools/public_api_guard/core/index.d.ts
+++ b/tools/public_api_guard/core/index.d.ts
@@ -705,7 +705,7 @@ export declare class ElementRef {
 export declare abstract class EmbeddedViewRef<C> extends ViewRef {
     context: C;
     rootNodes: any[];
-    abstract destroy(): any;
+    abstract destroy(): void;
 }
 
 /** @experimental */