refactor: remove ts2dart annotations

modules/@angular/core/src/di/injector.ts

@@ -9,8 +9,8 @@
 import {BaseException, unimplemented} from '../facade/exceptions';
 import {stringify} from '../facade/lang';
 
-const _THROW_IF_NOT_FOUND = /*@ts2dart_const*/ new Object();
-export const THROW_IF_NOT_FOUND = /*@ts2dart_const*/ _THROW_IF_NOT_FOUND;
+const _THROW_IF_NOT_FOUND = new Object();
+export const THROW_IF_NOT_FOUND = _THROW_IF_NOT_FOUND;
 
 class _NullInjector implements Injector {
   get(token: any, notFoundValue: any = _THROW_IF_NOT_FOUND): any {

modules/@angular/core/src/di/metadata.ts

@@ -47,7 +47,6 @@ import {stringify} from '../facade/lang';
  * var injector = Injector.resolveAndCreate([Engine, Car]);
  * expect(injector.get(Car).engine instanceof Engine).toBe(true);
  * ```
- * @ts2dart_const
  * @stable
  */
 export class InjectMetadata {
@@ -75,7 +74,6 @@ export class InjectMetadata {
  * var injector = Injector.resolveAndCreate([Car]);
  * expect(injector.get(Car).engine).toBeNull();
  * ```
- * @ts2dart_const
  * @stable
  */
 export class OptionalMetadata {
@@ -85,7 +83,6 @@ export class OptionalMetadata {
 /**
  * `DependencyMetadata` is used by the framework to extend DI.
  * This is internal to Angular and should not be used directly.
- * @ts2dart_const
  * @stable
  */
 export class DependencyMetadata {
@@ -122,7 +119,6 @@ export class DependencyMetadata {
  * var injector = Injector.resolveAndCreate([NeedsService, UsefulService]);
  * expect(() => injector.get(NeedsService)).toThrowError();
  * ```
- * @ts2dart_const
  * @stable
  */
 export class InjectableMetadata {
@@ -155,7 +151,6 @@ export class InjectableMetadata {
  * var child = inj.resolveAndCreateChild([NeedsDependency]);
  * expect(() => child.get(NeedsDependency)).toThrowError();
  * ```
- * @ts2dart_const
  * @stable
  */
 export class SelfMetadata {
@@ -186,7 +181,6 @@ export class SelfMetadata {
  * var inj = Injector.resolveAndCreate([Dependency, NeedsDependency]);
  * expect(() => inj.get(NeedsDependency)).toThrowError();
  * ```
- * @ts2dart_const
  * @stable
  */
 export class SkipSelfMetadata {
@@ -246,7 +240,6 @@ export class SkipSelfMetadata {
  *
  * bootstrap(App);
  *```
- * @ts2dart_const
  * @stable
  */
 export class HostMetadata {

modules/@angular/core/src/di/opaque_token.ts

@@ -26,7 +26,6 @@
  *
  * Using an `OpaqueToken` is preferable to using an `Object` as tokens because it provides better
  * error messages.
- * @ts2dart_const
  * @stable
  */
 export class OpaqueToken {

modules/@angular/core/src/di/provider.ts

@@ -24,7 +24,6 @@ import {Type, isBlank, isFunction, isType, normalizeBool, stringify} from '../fa
  *
  * expect(injector.get("message")).toEqual('Hello');
  * ```
- * @ts2dart_const
  * @deprecated
  */
 export class Provider {
@@ -211,7 +210,6 @@ export class Provider {
  * See {@link Provider} instead.
  *
  * @deprecated
- * @ts2dart_const
  */
 export class Binding extends Provider {
   constructor(token: any, {toClass, toValue, toAlias, toFactory, deps, multi}: {

modules/@angular/core/src/di/reflective_injector.ts

@@ -21,7 +21,7 @@ var __unused: Type;  // avoid unused import when Type union types are erased
 
 // Threshold for the dynamic version
 const _MAX_CONSTRUCTION_COUNTER = 10;
-const UNDEFINED = /*@ts2dart_const*/ new Object();
+const UNDEFINED = new Object();
 
 export interface ReflectiveProtoInjectorStrategy {
   getProviderAtIndex(index: number): ResolvedReflectiveProvider;
@@ -629,7 +629,7 @@ export class ReflectiveInjector_ implements ReflectiveInjector {
    */
   debugContext(): any { return this._debugContext(); }
 
-  get(token: any, notFoundValue: any = /*@ts2dart_const*/ THROW_IF_NOT_FOUND): any {
+  get(token: any, notFoundValue: any = THROW_IF_NOT_FOUND): any {
     return this._getByKey(ReflectiveKey.get(token), null, null, notFoundValue);
   }
 

modules/@angular/core/src/di/reflective_provider.ts

@@ -30,7 +30,7 @@ export class ReflectiveDependency {
   }
 }
 
-const _EMPTY_LIST: any[] = /*@ts2dart_const*/[];
+const _EMPTY_LIST: any[] = [];
 
 /**
  * An internal resolved representation of a {@link Provider} used by the {@link Injector}.