fix(errors): [1/2] Rename Exception to Error; remove from public API

modules/@angular/facade/src/base_wrapped_exception.ts

@@ -1,23 +0,0 @@
-/**
- * @license
- * Copyright Google Inc. All Rights Reserved.
- *
- * Use of this source code is governed by an MIT-style license that can be
- * found in the LICENSE file at https://angular.io/license
- */
-
-/**
- * A base class for the WrappedException that can be used to identify
- * a WrappedException from ExceptionHandler without adding circular
- * dependency.
- */
-export class BaseWrappedException extends Error {
-  constructor(message: string) { super(message); }
-
-  get wrapperMessage(): string { return ''; }
-  get wrapperStack(): any { return null; }
-  get originalException(): any { return null; }
-  get originalStack(): any { return null; }
-  get context(): any { return null; }
-  get message(): string { return ''; }
-}