Move MipsDisassembler classes into an anonymous namespace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155915 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/Mips/Disassembler/MipsDisassembler.cpp

@@ -29,6 +29,8 @@ using namespace llvm;
 
 typedef MCDisassembler::DecodeStatus DecodeStatus;
 
+namespace {
+
 /// MipsDisassembler - a disasembler class for Mips32.
 class MipsDisassembler : public MCDisassembler {
 public:
@@ -84,6 +86,8 @@ private:
   bool isBigEndian;
 };
 
+} // end anonymous namespace
+
 const EDInstInfo *MipsDisassembler::getEDInfo() const {
   return instInfoMips;
 }