Revert "Add basic crankshaft support for slow-mode for-in to avoid disabling optimizations"

test/mjsunit/for-in-opt.js

Index: test/mjsunit/for-in-opt.js
diff --git a/test/mjsunit/for-in-opt.js b/test/mjsunit/for-in-opt.js
deleted file mode 100644
index 58344e4dc1bcfcb66b6bb789a992993c0b1ed036..0000000000000000000000000000000000000000
--- a/test/mjsunit/for-in-opt.js
+++ /dev/null
@@ -1,75 +0,0 @@
-// Copyright 2015 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-proxies --allow-natives-syntax
-
-"use strict";
-
-// Test non-JSObject receiver.
-function f(o) {
-  var result = [];
-  for (var i in o) {
-    result.push(i);
-  }
-  return result;
-}
-
-assertEquals(["0"], f("a"));
-assertEquals(["0"], f("a"));
-%OptimizeFunctionOnNextCall(f);
-assertEquals(["0","1","2"], f("bla"));
-
-// Test the lazy deopt points.
-var keys = ["a", "b", "c", "d"];
-var has_keys = [];
-var deopt_has = false;
-var deopt_enum = false;
-
-var handler = {
-  enumerate: function(target) {
-    if (deopt_enum) {
-      %DeoptimizeFunction(f2);
-      deopt_enum = false;
-    }
-    return keys;
-  },
-
-  getPropertyDescriptor: function(k) {
-    if (deopt_has) {
-      %DeoptimizeFunction(f2);
-      deopt_has = false;
-    }
-    has_keys.push(k);
-    return {value: 10, configurable: true, writable: false, enumerable: true};
-  }
-};
-
-
-var proxy = Proxy.create(handler);
-var o = {__proto__: proxy};
-
-function f2(o) {
-  var result = [];
-  for (var i in o) {
-    result.push(i);
-  }
-  return result;
-}
-
-function check_f2() {
-  assertEquals(keys, f2(o));
-  assertEquals(keys, has_keys);
-  has_keys.length = 0;
-}
-
-check_f2();
-check_f2();
-// Test lazy deopt after GetPropertyNamesFast
-%OptimizeFunctionOnNextCall(f2);
-deopt_enum = true;
-check_f2();
-// Test lazy deopt after FILTER_KEY
-%OptimizeFunctionOnNextCall(f2);
-deopt_has = true;
-check_f2();