create a new MCParser library and move some stuff into it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94129 91177308-0d34-0410-b5e6-96231b3b80d8

lib/MC/MCParser/MCAsmLexer.cpp

@@ -0,0 +1,23 @@
+//===-- MCAsmLexer.cpp - Abstract Asm Lexer Interface ---------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/MC/MCParser/MCAsmLexer.h"
+#include "llvm/Support/SourceMgr.h"
+
+using namespace llvm;
+
+MCAsmLexer::MCAsmLexer() : CurTok(AsmToken::Error, StringRef()) {
+}
+
+MCAsmLexer::~MCAsmLexer() {
+}
+
+SMLoc AsmToken::getLoc() const {
+  return SMLoc::getFromPointer(Str.data());
+}