Avoid GC when compiling CallIC stubs....

src/heap.cc

Index: src/heap.cc
===================================================================
--- src/heap.cc	(revision 5173)
+++ src/heap.cc	(working copy)
@@ -134,6 +134,7 @@
 
 #ifdef DEBUG
 bool Heap::allocation_allowed_ = true;
+bool Heap::gc_allowed_ = true;
 
 int Heap::allocation_timeout_ = 0;
 bool Heap::disallow_allocation_failure_ = false;
@@ -319,6 +320,9 @@
 
 
 void Heap::GarbageCollectionPrologue() {
+#ifdef DEBUG
+  ASSERT(gc_allowed_);
+#endif
   TranscendentalCache::Clear();
   ClearJSFunctionResultCaches();
   gc_count_++;