Add MCAsmLexer interface.
 - This provides the AsmLexer interface to the target specific assembly parsers.

llvm-svn: 76460
diff --git a/llvm/tools/llvm-mc/AsmParser.h b/llvm/tools/llvm-mc/AsmParser.h
index b996758..d9f4b4c 100644
--- a/llvm/tools/llvm-mc/AsmParser.h
+++ b/llvm/tools/llvm-mc/AsmParser.h
@@ -24,6 +24,7 @@
 class MCInst;
 class MCStreamer;
 class MCValue;
+class TargetAsmParser;
 
 class AsmParser : MCAsmParser {
 public:
@@ -46,6 +47,8 @@
 public:
   TargetAsmParser &getTargetParser() const { return TargetParser; }
 
+  virtual MCAsmLexer &getLexer() { return Lexer; }
+
 private:
   bool ParseStatement();