This patch much improves our tracking of whether function is...

src/code-stubs.h

Index: src/code-stubs.h
===================================================================
--- src/code-stubs.h	(revision 2034)
+++ src/code-stubs.h	(working copy)
@@ -82,6 +82,10 @@
   virtual Major MajorKey() = 0;
   virtual int MinorKey() = 0;
 
+  // The CallFunctionStub needs to override this so it can encode whether a
+  // lazily generated function should be fully optimized or not.
+  virtual InlineCacheInLoop InLoop() { return NOT_IN_LOOP; }
+
   // Returns a name for logging/debugging purposes.
   virtual const char* GetName() { return MajorName(MajorKey()); }