[turbofan] Make MachineType a pair of enums.

src/compiler/code-stub-assembler.cc

 // Copyright 2015 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/code-stub-assembler.h"
 
 #include <ostream>
 
 #include "src/code-factory.h"
 #include "src/compiler/graph.h"
@@ skipping 101 matching lines @@
   return raw_assembler_->IntPtrSub(a, b);
 }
 
 
 Node* CodeStubAssembler::WordShl(Node* value, int shift) {
   return raw_assembler_->WordShl(value, Int32Constant(shift));
 }
 
 
 Node* CodeStubAssembler::LoadObjectField(Node* object, int offset) {
-  return raw_assembler_->Load(kMachAnyTagged, object,
+  return raw_assembler_->Load(MachineType::AnyTagged(), object,
                               IntPtrConstant(offset - kHeapObjectTag));
 }
 
 
 Node* CodeStubAssembler::CallN(CallDescriptor* descriptor, Node* code_target,
                                Node** args) {
   return raw_assembler_->CallN(descriptor, code_target, args);
 }
 
 
@@ skipping 34 matching lines @@
 
 Graph* CodeStubAssembler::graph() { return raw_assembler_->graph(); }
 
 
 Zone* CodeStubAssembler::zone() { return raw_assembler_->zone(); }
 
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8