[types] Use unified integral representation bits.

src/code-stubs.cc

Index: src/code-stubs.cc
diff --git a/src/code-stubs.cc b/src/code-stubs.cc
index d01d38727c6a803445ad46f959c8d883b8d0b492..3901f7fbefbcb53a26f1ce3b392fdc8eaa904a1a 100644
--- a/src/code-stubs.cc
+++ b/src/code-stubs.cc
@@ -1061,7 +1061,7 @@ InternalArrayConstructorStub::InternalArrayConstructorStub(
 
 
 Representation RepresentationFromType(Type* type) {
-  if (type->Is(Type::UntaggedSigned()) || type->Is(Type::UntaggedUnsigned())) {
+  if (type->Is(Type::UntaggedIntegral())) {
     return Representation::Integer32();
   }
 
@@ -1076,5 +1076,6 @@ Representation RepresentationFromType(Type* type) {
   DCHECK(!type->Is(Type::Untagged()));
   return Representation::Tagged();
 }
+
 }  // namespace internal
 }  // namespace v8