Make SMDiagnostic a little more sane.  Instead of passing around note/warning/error as a 
string, pass it around as an enum.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142107 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/llvm-mc/llvm-mc.cpp b/tools/llvm-mc/llvm-mc.cpp
index 5fb3fdf..ce4a5b3 100644
--- a/tools/llvm-mc/llvm-mc.cpp
+++ b/tools/llvm-mc/llvm-mc.cpp
@@ -267,7 +267,8 @@
 
     switch (Tok.getKind()) {
     default:
-      SrcMgr.PrintMessage(Lexer.getLoc(), "unknown token", "warning");
+      SrcMgr.PrintMessage(Lexer.getLoc(), SourceMgr::DK_Warning,
+                          "unknown token");
       Error = true;
       break;
     case AsmToken::Error: