Refer to the RegisterCoalescer pass by ID.

A public interface is no longer needed since RegisterCoalescer is not an
analysis any more.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137082 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/RegAllocBasic.cpp b/lib/CodeGen/RegAllocBasic.cpp
index 8bb8556..a97b9b6 100644
--- a/lib/CodeGen/RegAllocBasic.cpp
+++ b/lib/CodeGen/RegAllocBasic.cpp
@@ -20,7 +20,6 @@
 #include "RenderMachineFunction.h"
 #include "Spiller.h"
 #include "VirtRegMap.h"
-#include "RegisterCoalescer.h"
 #include "llvm/ADT/OwningPtr.h"
 #include "llvm/ADT/Statistic.h"
 #include "llvm/Analysis/AliasAnalysis.h"
@@ -160,7 +159,7 @@
   AU.addPreserved<LiveDebugVariables>();
   if (StrongPHIElim)
     AU.addRequiredID(StrongPHIEliminationID);
-  AU.addRequiredTransitive<RegisterCoalescer>();
+  AU.addRequiredTransitiveID(RegisterCoalescerPassID);
   AU.addRequired<CalculateSpillWeights>();
   AU.addRequired<LiveStacks>();
   AU.addPreserved<LiveStacks>();