Rename CT -> MTM. MachineTraceMetrics is abbreviated MTM.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161072 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/MachineTraceMetrics.h b/lib/CodeGen/MachineTraceMetrics.h
index 732e4f6..82079c6 100644
--- a/lib/CodeGen/MachineTraceMetrics.h
+++ b/lib/CodeGen/MachineTraceMetrics.h
@@ -176,7 +176,7 @@
     void computeHeightResources(const MachineBasicBlock*);
 
   protected:
-    MachineTraceMetrics &CT;
+    MachineTraceMetrics &MTM;
     virtual const MachineBasicBlock *pickTracePred(const MachineBasicBlock*) =0;
     virtual const MachineBasicBlock *pickTraceSucc(const MachineBasicBlock*) =0;
     explicit Ensemble(MachineTraceMetrics*);