refactor(compiler): store metadata of top level symbols also in summaries (#13289)

This allows a build using summaries to not need .metadata.json files at all
any more.

Part of #12787

modules/@angular/compiler/src/directive_resolver.ts

@@ -6,14 +6,16 @@
  * found in the LICENSE file at https://angular.io/license
  */
 
-import {Component, Directive, HostBinding, HostListener, Injectable, Input, Output, Query, Type, resolveForwardRef} from '@angular/core';
+import {Component, Directive, HostBinding, HostListener, Input, Output, Query, Type, resolveForwardRef} from '@angular/core';
 
 import {ListWrapper, StringMapWrapper} from './facade/collection';
 import {stringify} from './facade/lang';
+import {CompilerInjectable} from './injectable';
 import {ReflectorReader, reflector} from './private_import_core';
 import {splitAtColon} from './util';
 
 
+
 /*
  * Resolve a `Type` for {@link Directive}.
  *
@@ -21,7 +23,7 @@ import {splitAtColon} from './util';
  *
  * See {@link Compiler}
  */
-@Injectable()
+@CompilerInjectable()
 export class DirectiveResolver {
   constructor(private _reflector: ReflectorReader = reflector) {}