Switch the MachineOperand accessors back to the short names like
isReg, etc., from isRegister, etc.

llvm-svn: 57006
diff --git a/llvm/lib/CodeGen/RegAllocPBQP.cpp b/llvm/lib/CodeGen/RegAllocPBQP.cpp
index ee82f63..7783766 100644
--- a/llvm/lib/CodeGen/RegAllocPBQP.cpp
+++ b/llvm/lib/CodeGen/RegAllocPBQP.cpp
@@ -265,7 +265,7 @@
         const MachineOperand &mo = instr->getOperand(opNo);
 
         // We're not interested in non-registers...
-        if (!mo.isRegister())
+        if (!mo.isReg())
           continue;
  
         unsigned moReg = mo.getReg();