Rename msasm to alignstack per review.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84795 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AsmParser/LLLexer.cpp b/lib/AsmParser/LLLexer.cpp
index cb76605..f6cea88 100644
--- a/lib/AsmParser/LLLexer.cpp
+++ b/lib/AsmParser/LLLexer.cpp
@@ -529,7 +529,7 @@
   KEYWORD(module);
   KEYWORD(asm);
   KEYWORD(sideeffect);
-  KEYWORD(msasm);
+  KEYWORD(alignstack);
   KEYWORD(gc);
 
   KEYWORD(ccc);