Add code kind check before preparing for OSR.

BUG=v8:1900, 115073

Review URL: https://chromiumcodereview.appspot.com/9495005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10858 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/runtime-profiler.cc

@@ -257,7 +257,8 @@ void RuntimeProfiler::OptimizeNow() {
       }
     }
 
-    if (function->IsMarkedForLazyRecompilation()) {
+    if (function->IsMarkedForLazyRecompilation() &&
+        function->shared()->code()->kind() == Code::FUNCTION) {
       Code* unoptimized = function->shared()->code();
       int nesting = unoptimized->allow_osr_at_loop_nesting_level();
       if (nesting == 0) AttemptOnStackReplacement(function);