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

src/property-details.h

Index: src/property-details.h
diff --git a/src/property-details.h b/src/property-details.h
index 5686ed074430be4198dd040fa6458f4e68f59cf0..71ac8bb6fbf091978a8dea894fab31589d9ee0a1 100644
--- a/src/property-details.h
+++ b/src/property-details.h
@@ -58,9 +58,7 @@ namespace v8 {
 namespace internal {
 
 class Smi;
-template<class> class TypeImpl;
-struct HeapTypeConfig;
-typedef TypeImpl<HeapTypeConfig> Type;
+class Type;
 class TypeInfo;
 
 // Type of properties.
@@ -107,7 +105,9 @@ class Representation {
   static Representation Integer8() { return Representation(kInteger8); }
   static Representation UInteger8() { return Representation(kUInteger8); }
   static Representation Integer16() { return Representation(kInteger16); }
-  static Representation UInteger16() { return Representation(kUInteger16); }
+  static Representation UInteger16() {
+    return Representation(kUInteger16);
+  }
   static Representation Smi() { return Representation(kSmi); }
   static Representation Integer32() { return Representation(kInteger32); }
   static Representation Double() { return Representation(kDouble); }