[turbofan] Remove representation changes for machine constants.

src/compiler/js-typed-lowering.cc

Index: src/compiler/js-typed-lowering.cc
diff --git a/src/compiler/js-typed-lowering.cc b/src/compiler/js-typed-lowering.cc
index 7abbbd5190a9c8f28bef38dd6caa38fc0db7af61..0013bf3876fd270e19870a4eee716ccf207db578 100644
--- a/src/compiler/js-typed-lowering.cc
+++ b/src/compiler/js-typed-lowering.cc
@@ -1707,7 +1707,7 @@ void ReduceBuiltin(Isolate* isolate, JSGraph* jsgraph, Node* node,
   }
 
   const int argc = arity + BuiltinArguments::kNumExtraArgsWithReceiver;
-  Node* argc_node = jsgraph->Int32Constant(argc);
+  Node* argc_node = jsgraph->Constant(argc);
 
   static const int kStubAndReceiver = 2;
   int cursor = arity + kStubAndReceiver;