[-cxx-abi microsoft] Unnamed types are mangled less wrong


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@189208 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/MicrosoftMangle.cpp b/lib/AST/MicrosoftMangle.cpp
index 122816c..d9e18eb 100644
--- a/lib/AST/MicrosoftMangle.cpp
+++ b/lib/AST/MicrosoftMangle.cpp
@@ -508,8 +508,8 @@
       }
 
       // When VC encounters an anonymous type with no tag and no typedef,
-      // it literally emits '<unnamed-tag>'.
-      Out << "<unnamed-tag>";
+      // it literally emits '<unnamed-tag>@'.
+      Out << "<unnamed-tag>@";
       break;
     }