Speculatively attempt to work around a hypothetical but unreproduced MSVC issue
in r151494.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151544 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang/AST/Type.h b/include/clang/AST/Type.h
index e5e3c60..bfff07c 100644
--- a/include/clang/AST/Type.h
+++ b/include/clang/AST/Type.h
@@ -2706,7 +2706,7 @@
     bool Variadic : 1;
     bool HasTrailingReturn : 1;
     ExceptionSpecificationType ExceptionSpecType : 4;
-    RefQualifierKind RefQualifier : 2;
+    RefQualifierKind RefQualifier : 3;
     unsigned char TypeQuals;
     unsigned NumExceptions;
     const QualType *Exceptions;