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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76460 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/llvm-mc/AsmLexer.h b/tools/llvm-mc/AsmLexer.h
index 5d59d0a..32bbb50 100644
--- a/tools/llvm-mc/AsmLexer.h
+++ b/tools/llvm-mc/AsmLexer.h
@@ -14,6 +14,7 @@
 #ifndef ASMLEXER_H
 #define ASMLEXER_H
 
+#include "llvm/MC/MCAsmLexer.h"
 #include "llvm/Support/DataTypes.h"
 #include <string>
 #include <cassert>
@@ -52,7 +53,7 @@
 }
 
 /// AsmLexer - Lexer class for assembly files.
-class AsmLexer {
+class AsmLexer : public MCAsmLexer {
   SourceMgr &SrcMgr;
   
   const char *CurPtr;