[turbofan] Make MachineType a pair of enums.

test/cctest/compiler/test-jump-threading.cc

Index: test/cctest/compiler/test-jump-threading.cc
diff --git a/test/cctest/compiler/test-jump-threading.cc b/test/cctest/compiler/test-jump-threading.cc
index 43ca4aefed4a1654e6c9b1aa891dc6a431c2fc5b..8c02012e0a1d1179b8e84a06e794f3279bf213a0 100644
--- a/test/cctest/compiler/test-jump-threading.cc
+++ b/test/cctest/compiler/test-jump-threading.cc
@@ -57,16 +57,18 @@ class TestCode : public HandleAndZoneScope {
     Start();
     sequence_.AddInstruction(Instruction::New(main_zone(), kArchNop));
     int index = static_cast<int>(sequence_.instructions().size()) - 1;
-    AddGapMove(index,
-               AllocatedOperand(LocationOperand::REGISTER, kRepWord32, 13),
-               AllocatedOperand(LocationOperand::REGISTER, kRepWord32, 13));
+    AddGapMove(index, AllocatedOperand(LocationOperand::REGISTER,
+                                       MachineRepresentation::kWord32, 13),
+               AllocatedOperand(LocationOperand::REGISTER,
+                                MachineRepresentation::kWord32, 13));
   }
   void NonRedundantMoves() {
     Start();
     sequence_.AddInstruction(Instruction::New(main_zone(), kArchNop));
     int index = static_cast<int>(sequence_.instructions().size()) - 1;
     AddGapMove(index, ConstantOperand(11),
-               AllocatedOperand(LocationOperand::REGISTER, kRepWord32, 11));
+               AllocatedOperand(LocationOperand::REGISTER,
+                                MachineRepresentation::kWord32, 11));
   }
   void Other() {
     Start();