Upload Kmake

deps/v8/test/mjsunit/compiler/for-in-1.js

@@ -0,0 +1,21 @@
+// Copyright 2017 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: --allow-natives-syntax --turbofan
+
+// Ensure that we properly check for elements on the receiver.
+function foo(o) {
+  var s = "";
+  for (var i in o) s += i;
+  return s;
+}
+
+var a = [];
+%PrepareFunctionForOptimization(foo);
+assertEquals("", foo(a));
+assertEquals("", foo(a));
+%OptimizeFunctionOnNextCall(foo);
+assertEquals("", foo(a));
+a[0] = 1;
+assertEquals("0", foo(a));