[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/ScheduleDAG.cpp b/llvm/lib/CodeGen/ScheduleDAG.cpp
index 7117b26..0635e8f 100644
--- a/llvm/lib/CodeGen/ScheduleDAG.cpp
+++ b/llvm/lib/CodeGen/ScheduleDAG.cpp
@@ -80,7 +80,7 @@
   case Data:
     OS << " Latency=" << getLatency();
     if (TRI && isAssignedRegDep())
-      OS << " Reg=" << PrintReg(getReg(), TRI);
+      OS << " Reg=" << printReg(getReg(), TRI);
     break;
   case Anti:
   case Output: