Make some helpers static or move into the llvm namespace.

llvm-svn: 217077
diff --git a/llvm/lib/Target/Mips/MCTargetDesc/MipsELFStreamer.cpp b/llvm/lib/Target/Mips/MCTargetDesc/MipsELFStreamer.cpp
index 803ab85..7a984f5 100644
--- a/llvm/lib/Target/Mips/MCTargetDesc/MipsELFStreamer.cpp
+++ b/llvm/lib/Target/Mips/MCTargetDesc/MipsELFStreamer.cpp
@@ -9,6 +9,7 @@
 
 #include "MipsELFStreamer.h"
 #include "llvm/MC/MCInst.h"
+using namespace llvm;
 
 void MipsELFStreamer::EmitInstruction(const MCInst &Inst,
                                       const MCSubtargetInfo &STI) {