Exclude %_IsNativeOrStrictMode from natives fuzzer.

R=ricow@chromium.org

Review URL: http://codereview.chromium.org/7284032

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8492 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

test/mjsunit/fuzz-natives.js

@@ -167,7 +167,8 @@ var knownProblems = {
 
   "_SwapElements": true,
 
-  // Performance critical function which cannot afford type checks.
+  // Performance critical functions which cannot afford type checks.
+  "_IsNativeOrStrictMode": true,
   "_CallFunction": true,
 
   // Tries to allocate based on argument, and (correctly) throws