fix(errors): [2/2] Rename Exception to Error; remove from public API

BREAKING CHANGE:

Exceptions are no longer part of the public API. We don't expect that anyone should be referring to the Exception types.

ExceptionHandler.call(exception: any, stackTrace?: any, reason?: string): void;
change to:
ErrorHandler.handleError(error: any): void;

modules/@angular/common/src/pipes/async_pipe.ts

@@ -9,7 +9,7 @@
 import {ChangeDetectorRef, OnDestroy, Pipe, WrappedValue} from '@angular/core';
 import {EventEmitter, Observable} from '../facade/async';
 import {isBlank, isPresent, isPromise} from '../facade/lang';
-import {InvalidPipeArgumentException} from './invalid_pipe_argument_exception';
+import {InvalidPipeArgumentError} from './invalid_pipe_argument_error';
 
 interface SubscriptionStrategy {
   createSubscription(async: any, updateLatestValue: any): any;
@@ -128,7 +128,7 @@ export class AsyncPipe implements OnDestroy {
     } else if ((<any>obj).subscribe) {
       return _observableStrategy;
     } else {
-      throw new InvalidPipeArgumentException(AsyncPipe, obj);
+      throw new InvalidPipeArgumentError(AsyncPipe, obj);
     }
   }