Move MachineRepresentation to machine-type.h and rename to MachineType in preparation for merging i…

src/compiler/x64/instruction-selector-x64.cc

Index: src/compiler/x64/instruction-selector-x64.cc
diff --git a/src/compiler/x64/instruction-selector-x64.cc b/src/compiler/x64/instruction-selector-x64.cc
index f97fc3881e0f301cf8e9effc12e75f1e069912b0..965e612e2d636d5dac56509db67744442e7c4603 100644
--- a/src/compiler/x64/instruction-selector-x64.cc
+++ b/src/compiler/x64/instruction-selector-x64.cc
@@ -56,7 +56,7 @@ class X64OperandGenerator V8_FINAL : public OperandGenerator {
 
 
 void InstructionSelector::VisitLoad(Node* node) {
-  MachineRepresentation rep = OpParameter<MachineRepresentation>(node);
+  MachineType rep = OpParameter<MachineType>(node);
   X64OperandGenerator g(this);
   Node* base = node->InputAt(0);
   Node* index = node->InputAt(1);
@@ -108,7 +108,7 @@ void InstructionSelector::VisitStore(Node* node) {
   Node* value = node->InputAt(2);
 
   StoreRepresentation store_rep = OpParameter<StoreRepresentation>(node);
-  MachineRepresentation rep = store_rep.rep;
+  MachineType rep = store_rep.rep;
   if (store_rep.write_barrier_kind == kFullWriteBarrier) {
     DCHECK(rep == kMachineTagged);
     // TODO(dcarney): refactor RecordWrite function to take temp registers