remove MachineOpCode typedef.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45679 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMInstrInfo.cpp b/lib/Target/ARM/ARMInstrInfo.cpp
index 3522637..b291d19 100644
--- a/lib/Target/ARM/ARMInstrInfo.cpp
+++ b/lib/Target/ARM/ARMInstrInfo.cpp
@@ -52,7 +52,7 @@
 ///
 bool ARMInstrInfo::isMoveInstr(const MachineInstr &MI,
                                unsigned &SrcReg, unsigned &DstReg) const {
-  MachineOpCode oc = MI.getOpcode();
+  unsigned oc = MI.getOpcode();
   switch (oc) {
   default:
     return false;