[CodeGen] Rename functions PrintReg* to printReg*

LLVM Coding Standards:
  Function names should be verb phrases (as they represent actions), and
  command-like function should be imperative. The name should be camel
  case, and start with a lower case letter (e.g. openFile() or isFoo()).

Differential Revision: https://reviews.llvm.org/D40416

llvm-svn: 319168
diff --git a/llvm/lib/Target/AArch64/AArch64FrameLowering.cpp b/llvm/lib/Target/AArch64/AArch64FrameLowering.cpp
index ab7e35d..257e6f6 100644
--- a/llvm/lib/Target/AArch64/AArch64FrameLowering.cpp
+++ b/llvm/lib/Target/AArch64/AArch64FrameLowering.cpp
@@ -1208,7 +1208,7 @@
 
   DEBUG(dbgs() << "*** determineCalleeSaves\nUsed CSRs:";
         for (unsigned Reg : SavedRegs.set_bits())
-          dbgs() << ' ' << PrintReg(Reg, RegInfo);
+          dbgs() << ' ' << printReg(Reg, RegInfo);
         dbgs() << "\n";);
 
   // If any callee-saved registers are used, the frame cannot be eliminated.
@@ -1233,7 +1233,7 @@
   // here.
   if (BigStack) {
     if (!ExtraCSSpill && UnspilledCSGPR != AArch64::NoRegister) {
-      DEBUG(dbgs() << "Spilling " << PrintReg(UnspilledCSGPR, RegInfo)
+      DEBUG(dbgs() << "Spilling " << printReg(UnspilledCSGPR, RegInfo)
             << " to get a scratch register.\n");
       SavedRegs.set(UnspilledCSGPR);
       // MachO's compact unwind format relies on all registers being stored in