Use native Error instead of custom Error subclass.

packages/@ember/error/index.ts

@@ -1,46 +1,5 @@
 /**
  @module @ember/error
 */
-function ExtendBuiltin(klass: any): typeof Error {
-  function ExtendableBuiltin(this: any) {
-    klass.apply(this, arguments);
-  }
 
-  ExtendableBuiltin.prototype = Object.create(klass.prototype);
-  ExtendableBuiltin.prototype.constructor = ExtendableBuiltin;
-  return ExtendableBuiltin as typeof Error;
-}
-
-/**
-  A subclass of the JavaScript Error object for use in Ember.
-
-  @class EmberError
-  @extends Error
-  @constructor
-  @public
-*/
-export default class EmberError extends ExtendBuiltin(Error) {
-  description: string;
-  fileName: string;
-  lineNumber: number;
-  number: number;
-  code: string;
-
-  constructor(message: string) {
-    super();
-
-    if (!(this instanceof EmberError)) {
-      return new EmberError(message);
-    }
-
-    let error = Error.call(this, message);
-    this.stack = error.stack;
-    this.description = error.description;
-    this.fileName = error.fileName;
-    this.lineNumber = error.lineNumber;
-    this.message = error.message;
-    this.name = error.name;
-    this.number = error.number;
-    this.code = error.code;
-  }
-}
+export default Error;