Revert "Fix Heap::IsHeapIterable."

test/mjsunit/regress/regress-373283.js

Index: test/mjsunit/regress/regress-373283.js
diff --git a/test/mjsunit/regress/regress-373283.js b/test/mjsunit/regress/regress-373283.js
deleted file mode 100644
index 20cee4d808ed681786503ea9e2c5f876daadd63d..0000000000000000000000000000000000000000
--- a/test/mjsunit/regress/regress-373283.js
+++ /dev/null
@@ -1,18 +0,0 @@
-// 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:  --allow-natives-syntax --deopt-every-n-times=1
-
-function __f_0() {
-  var x = [];
-  x[21] = 1;
-  x[21] + 0;
-}
-
-for (var i = 0; i < 3; i++) __f_0();
-%OptimizeFunctionOnNextCall(__f_0);
-for (var i = 0; i < 10; i++) __f_0();
-%OptimizeFunctionOnNextCall(__f_0);
-__f_0();
-%GetScript("foo");