Just drop the bitfield from ExtProtoInfo, this struct isn't even heap allocated so it doesn't hurt.

MSVC < 10 still has the signed enum bitfield bug, making the top bit unusable.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151545 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang/AST/Type.h b/include/clang/AST/Type.h
index bfff07c..8146d7b 100644
--- a/include/clang/AST/Type.h
+++ b/include/clang/AST/Type.h
@@ -2698,16 +2698,16 @@
   /// ExtProtoInfo - Extra information about a function prototype.
   struct ExtProtoInfo {
     ExtProtoInfo() :
-      Variadic(false), HasTrailingReturn(false), ExceptionSpecType(EST_None),
-      RefQualifier(RQ_None), TypeQuals(0), NumExceptions(0), Exceptions(0),
-      NoexceptExpr(0), ConsumedArguments(0) {}
+      Variadic(false), HasTrailingReturn(false), TypeQuals(0),
+      ExceptionSpecType(EST_None), RefQualifier(RQ_None),
+      NumExceptions(0), Exceptions(0), NoexceptExpr(0), ConsumedArguments(0) {}
 
     FunctionType::ExtInfo ExtInfo;
     bool Variadic : 1;
     bool HasTrailingReturn : 1;
-    ExceptionSpecificationType ExceptionSpecType : 4;
-    RefQualifierKind RefQualifier : 3;
     unsigned char TypeQuals;
+    ExceptionSpecificationType ExceptionSpecType;
+    RefQualifierKind RefQualifier;
     unsigned NumExceptions;
     const QualType *Exceptions;
     Expr *NoexceptExpr;