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

src/compiler/arm64/instruction-selector-arm64.cc

Index: src/compiler/arm64/instruction-selector-arm64.cc
diff --git a/src/compiler/arm64/instruction-selector-arm64.cc b/src/compiler/arm64/instruction-selector-arm64.cc
index bd23dfd17e2a6fc9d7a85181df26f2c8a46a55c3..54f21cf9f612a0df820255b9e07bfe5d8679ea81 100644
--- a/src/compiler/arm64/instruction-selector-arm64.cc
+++ b/src/compiler/arm64/instruction-selector-arm64.cc
@@ -150,7 +150,7 @@ static void VisitBinop(InstructionSelector* selector, Node* node,
 
 
 void InstructionSelector::VisitLoad(Node* node) {
-  MachineRepresentation rep = OpParameter<MachineRepresentation>(node);
+  MachineType rep = OpParameter<MachineType>(node);
   Arm64OperandGenerator g(this);
   Node* base = node->InputAt(0);
   Node* index = node->InputAt(1);
@@ -201,7 +201,7 @@ 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