chore(typescript): fixes dart failures and linter

Closes #4359

modules/angular2/src/core/change_detection/abstract_change_detector.ts

@@ -216,7 +216,7 @@ export class AbstractChangeDetector<T> implements ChangeDetector {
   }
 
   // This is an experimental feature. Works only in Dart.
-  protected observeValue(value: any, index: number): any {
+  observeValue(value: any, index: number): any {
     if (isObservable(value)) {
       this._createArrayToStoreObservables();
       if (isBlank(this.subscriptions[index])) {
@@ -232,7 +232,7 @@ export class AbstractChangeDetector<T> implements ChangeDetector {
   }
 
   // This is an experimental feature. Works only in Dart.
-  protected observeDirective(value: any, index: number): any {
+  observeDirective(value: any, index: number): any {
     if (isObservable(value)) {
       this._createArrayToStoreObservables();
       var arrayIndex = this.numberOfPropertyProtoRecords + index + 2;  // +1 is component
@@ -243,7 +243,7 @@ export class AbstractChangeDetector<T> implements ChangeDetector {
   }
 
   // This is an experimental feature. Works only in Dart.
-  protected observeComponent(value: any): any {
+  observeComponent(value: any): any {
     if (isObservable(value)) {
       this._createArrayToStoreObservables();
       var index = this.numberOfPropertyProtoRecords + 1;
@@ -262,24 +262,23 @@ export class AbstractChangeDetector<T> implements ChangeDetector {
     }
   }
 
-  protected getDirectiveFor(directives: any, index: number): any {
+  getDirectiveFor(directives: any, index: number): any {
     return directives.getDirectiveFor(this.directiveIndices[index]);
   }
 
-  protected getDetectorFor(directives: any, index: number): ChangeDetector {
+  getDetectorFor(directives: any, index: number): ChangeDetector {
     return directives.getDetectorFor(this.directiveIndices[index]);
   }
 
-  protected notifyDispatcher(value: any): void {
+  notifyDispatcher(value: any): void {
     this.dispatcher.notifyOnBinding(this._currentBinding(), value);
   }
 
-  protected logBindingUpdate(value: any): void {
+  logBindingUpdate(value: any): void {
     this.dispatcher.logBindingUpdate(this._currentBinding(), value);
   }
 
-  protected addChange(changes: StringMap<string, any>, oldValue: any,
-                      newValue: any): StringMap<string, any> {
+  addChange(changes: StringMap<string, any>, oldValue: any, newValue: any): StringMap<string, any> {
     if (isBlank(changes)) {
       changes = {};
     }
@@ -295,12 +294,12 @@ export class AbstractChangeDetector<T> implements ChangeDetector {
     throw new ChangeDetectionError(this._currentBinding().debug, exception, stack, context);
   }
 
-  protected throwOnChangeError(oldValue: any, newValue: any): void {
+  throwOnChangeError(oldValue: any, newValue: any): void {
     throw new ExpressionChangedAfterItHasBeenCheckedException(this._currentBinding().debug,
                                                               oldValue, newValue, null);
   }
 
-  protected throwDehydratedError(): void { throw new DehydratedException(); }
+  throwDehydratedError(): void { throw new DehydratedException(); }
 
   private _currentBinding(): BindingTarget {
     return this.bindingTargets[this.propertyBindingIndex];

modules/angular2/src/core/compiler/directive_resolver.ts

@@ -77,7 +77,7 @@ export class DirectiveResolver {
         }
 
         if (a instanceof HostListenerMetadata) {
-          var args = isPresent(a.args) ? a.args.join(', ') : '';
+          var args = isPresent(a.args) ? (<any[]>a.args).join(', ') : '';
           host[`(${a.eventName})`] = `${propName}(${args})`;
         }
 

modules/angular2/src/core/facade/exception_handler.ts

@@ -83,7 +83,7 @@ export class ExceptionHandler {
   }
 
   _longStackTrace(stackTrace: any): any {
-    return isListLikeIterable(stackTrace) ? (<any>stackTrace).join("\n\n-----async gap-----\n") :
+    return isListLikeIterable(stackTrace) ? (<any[]>stackTrace).join("\n\n-----async gap-----\n") :
                                             stackTrace.toString();
   }
 

modules/angular2/src/core/render/dom/compiler/style_inliner.ts

@@ -91,7 +91,7 @@ export class StyleInliner {
     }
 
     return PromiseWrapper.all(promises).then(function(cssParts) {
-      var cssText = cssParts.join('');
+      var cssText = (<any[]>cssParts).join('');
       if (partIndex < parts.length) {
         // append then content located after the last @import rule
         cssText += parts[partIndex];

modules/angular2/src/core/render/dom/view/shared_styles_host.ts

@@ -5,8 +5,8 @@ import {DOCUMENT} from '../dom_tokens';
 
 @Injectable()
 export class SharedStylesHost {
-  protected _styles: string[] = [];
-  protected _stylesSet: Set<string> = new Set();
+  _styles: string[] = [];
+  _stylesSet: Set<string> = new Set();
 
   constructor() {}
 
@@ -22,7 +22,7 @@ export class SharedStylesHost {
     this.onStylesAdded(additions);
   }
 
-  protected onStylesAdded(additions: string[]) {}
+  onStylesAdded(additions: string[]) {}
 
   getAllStyles(): string[] { return this._styles; }
 }