Add a getName function to MachineFunction. Use it in places that previously did getFunction()->getName(). Remove includes of Function.h that are no longer needed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162347 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/VirtRegMap.cpp

@@ -19,7 +19,6 @@
 #define DEBUG_TYPE "regalloc"
 #include "VirtRegMap.h"
 #include "LiveDebugVariables.h"
-#include "llvm/Function.h"
 #include "llvm/CodeGen/LiveIntervalAnalysis.h"
 #include "llvm/CodeGen/MachineFrameInfo.h"
 #include "llvm/CodeGen/MachineFunction.h"
@@ -197,7 +196,7 @@ bool VirtRegRewriter::runOnMachineFunction(MachineFunction &fn) {
   VRM = &getAnalysis<VirtRegMap>();
   DEBUG(dbgs() << "********** REWRITE VIRTUAL REGISTERS **********\n"
                << "********** Function: "
-               << MF->getFunction()->getName() << '\n');
+               << MF->getName() << '\n');
   DEBUG(VRM->dump());
 
   // Add kill flags while we still have virtual registers.