doc(api): fix invalid doc links (#9873)

Errors were reported during API doc generation.

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

@@ -259,7 +259,7 @@ export class Binding extends Provider {
  * to an existing `token`.
  * See {@link ProviderBuilder} for more details.
  *
- * The `token` is most commonly a class or {@link OpaqueToken-class.html}.
+ * The `token` is most commonly a class or {@link OpaqueToken}.
  *
  * @deprecated
  */

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

@@ -73,8 +73,8 @@ export class AbstractProviderError extends BaseException {
 }
 
 /**
- * Thrown when trying to retrieve a dependency by `Key` from {@link Injector}, but the
- * {@link Injector} does not have a {@link Provider} for {@link Key}.
+ * Thrown when trying to retrieve a dependency by key from {@link Injector}, but the
+ * {@link Injector} does not have a {@link Provider} for the given key.
  *
  * ### Example ([live demo](http://plnkr.co/edit/vq8D3FRB9aGbnWJqtEPE?p=preview))
  *

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

@@ -68,7 +68,7 @@ export interface ResolvedReflectiveProvider {
 }
 
 /**
- * See {@link ResolvedProvider} instead.
+ * See {@link ResolvedReflectiveProvider} instead.
  *
  * @deprecated
  */