Only clear monomorphic ICs on GC after Context exit

src/mark-compact.h

Index: src/mark-compact.h
diff --git a/src/mark-compact.h b/src/mark-compact.h
index 486be6811da9f18250b087f1608b562dddc6a549..239e3ef49b576cd383612927508dd5e55b3aedf0 100644
--- a/src/mark-compact.h
+++ b/src/mark-compact.h
@@ -1,4 +1,4 @@
-// Copyright 2011 the V8 project authors. All rights reserved.
+// Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
@@ -580,6 +580,8 @@ class MarkCompactCollector {
 
   bool collect_maps_;
 
+  bool flush_monomorphic_ics_;
+
   // A pointer to the current stack-allocated GC tracer object during a full
   // collection (NULL before and after).
   GCTracer* tracer_;