llvm-undname: Extract demangleMD5Name() method; no behavior change

llvm-svn: 361783
diff --git a/llvm/include/llvm/Demangle/MicrosoftDemangle.h b/llvm/include/llvm/Demangle/MicrosoftDemangle.h
index 7ecf727..6b3c7c9 100644
--- a/llvm/include/llvm/Demangle/MicrosoftDemangle.h
+++ b/llvm/include/llvm/Demangle/MicrosoftDemangle.h
@@ -157,6 +157,7 @@
   SymbolNode *demangleEncodedSymbol(StringView &MangledName,
                                     QualifiedNameNode *QN);
   SymbolNode *demangleDeclarator(StringView &MangledName);
+  SymbolNode *demangleMD5Name(StringView &MangledName);
 
   VariableSymbolNode *demangleVariableEncoding(StringView &MangledName,
                                                StorageClass SC);