ClusterFuzz fix: %NormalizeElements shouldn't process the global proxy.

test/mjsunit/regress/regress-449070.js

Index: test/mjsunit/regress/regress-449070.js
diff --git a/test/mjsunit/regress/regress-444805.js b/test/mjsunit/regress/regress-449070.js
similarity index 69%
copy from test/mjsunit/regress/regress-444805.js
copy to test/mjsunit/regress/regress-449070.js
index 5a533acd5ebf2fc196373e2b0e2c4b9df0a29ab6..7a0f0a838cdd25817ab6a2d8f63c1ef9fbe6e526 100644
--- a/test/mjsunit/regress/regress-444805.js
+++ b/test/mjsunit/regress/regress-449070.js
@@ -1,8 +1,10 @@
 // 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: --allow-natives-syntax
 
 try {
-  load("test/mjsunit/regress/regress-444805.js-script");
-} catch (e) {
+  %NormalizeElements(this);
+} catch(e) {
 }