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/lib/AsmParser/Parser.cpp b/lib/AsmParser/Parser.cpp
index 59fb471..21b7fd4 100644
--- a/lib/AsmParser/Parser.cpp
+++ b/lib/AsmParser/Parser.cpp
@@ -44,7 +44,7 @@
                                 LLVMContext &Context) {
   OwningPtr<MemoryBuffer> File;
   if (error_code ec = MemoryBuffer::getFileOrSTDIN(Filename.c_str(), File)) {
-    Err = SMDiagnostic(Filename,
+    Err = SMDiagnostic(Filename, SourceMgr::DK_Error,
                        "Could not open input file: " + ec.message());
     return 0;
   }