Version 3.20.5

Ensured that the length of frozen arrays is immutable  (issue 2711,259548)

Performance and stability improvements on all platforms.

git-svn-id: http://v8.googlecode.com/svn/trunk@15657 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
diff --git a/src/runtime-profiler.cc b/src/runtime-profiler.cc
index bd02a69..ff41432 100644
--- a/src/runtime-profiler.cc
+++ b/src/runtime-profiler.cc
@@ -247,7 +247,7 @@
        frame_count++ < frame_count_limit && !it.done();
        it.Advance()) {
     JavaScriptFrame* frame = it.frame();
-    JSFunction* function = JSFunction::cast(frame->function());
+    JSFunction* function = frame->function();
 
     if (!FLAG_watch_ic_patching) {
       // Adjust threshold each time we have processed