[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/CodeGen/MachineTraceMetrics.cpp b/llvm/lib/CodeGen/MachineTraceMetrics.cpp
index 400f61d..453b47b 100644
--- a/llvm/lib/CodeGen/MachineTraceMetrics.cpp
+++ b/llvm/lib/CodeGen/MachineTraceMetrics.cpp
@@ -1135,14 +1135,14 @@
     for (LiveInReg &LIR : TBI.LiveIns) {
       const MachineInstr *DefMI = MTM.MRI->getVRegDef(LIR.Reg);
       LIR.Height = Heights.lookup(DefMI);
-      DEBUG(dbgs() << ' ' << PrintReg(LIR.Reg) << '@' << LIR.Height);
+      DEBUG(dbgs() << ' ' << printReg(LIR.Reg) << '@' << LIR.Height);
     }
 
     // Transfer the live regunits to the live-in list.
     for (SparseSet<LiveRegUnit>::const_iterator
          RI = RegUnits.begin(), RE = RegUnits.end(); RI != RE; ++RI) {
       TBI.LiveIns.push_back(LiveInReg(RI->RegUnit, RI->Cycle));
-      DEBUG(dbgs() << ' ' << PrintRegUnit(RI->RegUnit, MTM.TRI)
+      DEBUG(dbgs() << ' ' << printRegUnit(RI->RegUnit, MTM.TRI)
                    << '@' << RI->Cycle);
     }
     DEBUG(dbgs() << '\n');