Tag normal as handlers, and make code handler-specific.

src/objects.h

Index: src/objects.h
diff --git a/src/objects.h b/src/objects.h
index 0e065e67852d0368a5f8db95fb60e303a88b9471..8a48116f99f77e76726ec5cd8f47a604b754bd12 100644
--- a/src/objects.h
+++ b/src/objects.h
@@ -4998,9 +4998,12 @@ class Code: public HeapObject {
   void FindAllMaps(MapHandleList* maps);
   void ReplaceFirstMap(Map* replace);
 
-  // Find the first code in an IC stub.
-  Code* FindFirstCode();
-  void FindAllCode(CodeHandleList* code_list, int length);
+  // Find the first handler in an IC stub.
+  Code* FindFirstHandler();
+
+  // Find |length| handlers and put them into |code_list|. Returns false if not
+  // enough handlers can be found.
+  MUST_USE_RESULT bool FindHandlers(CodeHandleList* code_list, int length);
 
   // Find the first name in an IC stub.
   Name* FindFirstName();