Remove support for Object.observe

test/mjsunit/array-push7.js

-// Copyright 2014 the V8 project authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Flags: --harmony-object-observe
-// Flags: --allow-natives-syntax
-
-var v = 0;
-
-function push_wrapper(array, value) {
-  array.push(value);
-}
-function pop_wrapper(array) {
-  return array.pop();
-}
-
-// Test that Object.observe() notification events are properly sent from
-// Array.push() and Array.pop() both from optimized and un-optimized code.
-var array = [];
-
-function somethingChanged(changes) {
-  v++;
-}
-
-Object.observe(array, somethingChanged);
-push_wrapper(array, 1);
-%RunMicrotasks();
-assertEquals(1, array.length);
-assertEquals(1, v);
-push_wrapper(array, 1);
-%RunMicrotasks();
-assertEquals(2, array.length);
-assertEquals(2, v);
-%OptimizeFunctionOnNextCall(push_wrapper);
-push_wrapper(array, 1);
-%RunMicrotasks();
-assertEquals(3, array.length);
-assertEquals(3, v);
-push_wrapper(array, 1);
-%RunMicrotasks();
-assertEquals(4, array.length);
-assertEquals(4, v);
-
-pop_wrapper(array);
-%RunMicrotasks();
-assertEquals(3, array.length);
-assertEquals(5, v);
-pop_wrapper(array);
-%RunMicrotasks();
-assertEquals(2, array.length);
-assertEquals(6, v);
-%OptimizeFunctionOnNextCall(pop_wrapper);
-pop_wrapper(array);
-%RunMicrotasks();
-assertEquals(1, array.length);
-assertEquals(7, v);
-pop_wrapper(array);
-%RunMicrotasks();
-assertEquals(0, array.length);
-assertEquals(8, v);