Only clear monomorphic ICs on GC after Context exit

src/isolate.cc

Index: src/isolate.cc
diff --git a/src/isolate.cc b/src/isolate.cc
index f66a22db133c6689f7b7010d20b6c07d6d9f2011..82af337d905f15b4bcda189453e8708bae85956f 100644
--- a/src/isolate.cc
+++ b/src/isolate.cc
@@ -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:
@@ -1454,7 +1454,8 @@ Isolate::Isolate()
       has_installed_extensions_(false),
       string_tracker_(NULL),
       regexp_stack_(NULL),
-      embedder_data_(NULL) {
+      embedder_data_(NULL),
+      context_exit_happened_(false) {
   TRACE_ISOLATE(constructor);
 
   memset(isolate_addresses_, 0,