[Sheriff] Revert "Templatise type representation" and "Fix Mac warnings".

src/ic.h

Index: src/ic.h
diff --git a/src/ic.h b/src/ic.h
index 9a42b75fc1894fe2026c88ba5baa29e7103c3b23..688c227643b7bef37d4f324410e6805c9d503683 100644
--- a/src/ic.h
+++ b/src/ic.h
@@ -171,7 +171,7 @@ class IC {
   //   well as smis.
   // - The oddball map is only used for booleans.
   static Handle<Map> TypeToMap(Type* type, Isolate* isolate);
-  static Handle<Type> MapToType(Handle<Map> type);
+  static Type* MapToType(Handle<Map> type);
   static Handle<Type> CurrentTypeOf(Handle<Object> object, Isolate* isolate);
 
   ContextualMode contextual_mode() const {
@@ -243,7 +243,7 @@ class IC {
   virtual void UpdateMegamorphicCache(Type* type, Name* name, Code* code);
 
   void CopyICToMegamorphicCache(Handle<String> name);
-  bool IsTransitionOfMonomorphicTarget(Handle<Type> type);
+  bool IsTransitionOfMonomorphicTarget(Type* type);
   void PatchCache(Handle<Type> type,
                   Handle<String> name,
                   Handle<Code> code);