Merge bleeding edge into the GC branch up to 7948. The asserts

src/frames.h

Index: src/frames.h
===================================================================
--- src/frames.h	(revision 7948)
+++ src/frames.h	(working copy)
@@ -28,6 +28,7 @@
 #ifndef V8_FRAMES_H_
 #define V8_FRAMES_H_
 
+#include "allocation.h"
 #include "handles.h"
 #include "safepoint-table.h"
 
@@ -151,6 +152,12 @@
     NO_ID = 0
   };
 
+  // Used to mark the outermost JS entry frame.
+  enum JsFrameMarker {
+    INNER_JSENTRY_FRAME = 0,
+    OUTERMOST_JSENTRY_FRAME = 1
+  };
+
   struct State {
     State() : sp(NULL), fp(NULL), pc_address(NULL) { }
     Address sp;