Make embedded maps in optimized code weak.

src/mark-compact.h

Index: src/mark-compact.h
diff --git a/src/mark-compact.h b/src/mark-compact.h
index 9a0b014d633d6a069f288c9341cd9eac38531a66..4de348fdc0e781fdcbe93a42c6c3d4f8f876f661 100644
--- a/src/mark-compact.h
+++ b/src/mark-compact.h
@@ -794,6 +794,9 @@ class MarkCompactCollector {
   void ClearNonLivePrototypeTransitions(Map* map);
   void ClearNonLiveMapTransitions(Map* map, MarkBit map_mark);
 
+  void DeoptimizeLiveDependentCodes(Map* map);
+  void ClearNonLiveDependentCodes(Map* map);
+
   // Marking detaches initial maps from SharedFunctionInfo objects
   // to make this reference weak. We need to reattach initial maps
   // back after collection. This is either done during