Move MachineTraceMetrics.h into include/llvm/CodeGen.

Let targets use it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172688 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/EarlyIfConversion.cpp b/lib/CodeGen/EarlyIfConversion.cpp
index f332925..fac207e 100644
--- a/lib/CodeGen/EarlyIfConversion.cpp
+++ b/lib/CodeGen/EarlyIfConversion.cpp
@@ -17,8 +17,6 @@
 //===----------------------------------------------------------------------===//
 
 #define DEBUG_TYPE "early-ifcvt"
-#include "llvm/CodeGen/Passes.h"
-#include "MachineTraceMetrics.h"
 #include "llvm/ADT/BitVector.h"
 #include "llvm/ADT/PostOrderIterator.h"
 #include "llvm/ADT/SetVector.h"
@@ -31,6 +29,8 @@
 #include "llvm/CodeGen/MachineFunctionPass.h"
 #include "llvm/CodeGen/MachineLoopInfo.h"
 #include "llvm/CodeGen/MachineRegisterInfo.h"
+#include "llvm/CodeGen/MachineTraceMetrics.h"
+#include "llvm/CodeGen/Passes.h"
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/raw_ostream.h"