[turbofan] Remove representation changes for machine constants.

src/compiler/js-typed-lowering.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/compiler/js-typed-lowering.h"
 
 #include "src/builtins/builtins-utils.h"
 #include "src/code-factory.h"
 #include "src/compilation-dependencies.h"
 #include "src/compiler/access-builder.h"
@@ skipping 1689 matching lines @@
   Zone* zone = jsgraph->zone();
   if (is_construct) {
     // Unify representations between construct and call nodes.
     // Remove new target and add receiver as a stack parameter.
     Node* receiver = jsgraph->UndefinedConstant();
     node->RemoveInput(arity + 1);
     node->InsertInput(zone, 1, receiver);
   }
 
   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;
   node->InsertInput(zone, cursor++, argc_node);
   node->InsertInput(zone, cursor++, target);
   node->InsertInput(zone, cursor++, new_target);
 
   Address entry = Builtins::CppEntryOf(builtin_index);
   ExternalReference entry_ref(ExternalReference(entry, isolate));
   Node* entry_node = jsgraph->ExternalConstant(entry_ref);
@@ skipping 458 matching lines @@
 }
 
 
 CompilationDependencies* JSTypedLowering::dependencies() const {
   return dependencies_;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8