Reimplement stack manipulations for LiveEdit

src/heap.h

Index: src/heap.h
diff --git a/src/heap.h b/src/heap.h
index df3ba0ea2a24b9c3b1f85d532c6d31fcf80a2b85..525510bb84191cb5d8560f0fa77c85bd124aa648 100644
--- a/src/heap.h
+++ b/src/heap.h
@@ -632,9 +632,7 @@ class Heap : public AllStatic {
 
   static Object* CopyCode(Code* code);
 
-  // Copy the code and scope info part of the code object, but insert
-  // the provided data as the relocation information.
-  static Object* CopyCode(Code* code, Vector<byte> reloc_info);
+  static Object* AddPatchToCode(Code* code, Code* patch);
 
   // Finds the symbol for string in the symbol table.
   // If not found, a new symbol is added to the table and returned.