Basic support for Microsoft property declarations and
references thereto.

Patch by Tong Shen!

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179585 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/ExprConstant.cpp b/lib/AST/ExprConstant.cpp
index d499228..3675b2f 100644
--- a/lib/AST/ExprConstant.cpp
+++ b/lib/AST/ExprConstant.cpp
@@ -6488,6 +6488,7 @@
   case Expr::CXXDynamicCastExprClass:
   case Expr::CXXTypeidExprClass:
   case Expr::CXXUuidofExprClass:
+  case Expr::MSPropertyRefExprClass:
   case Expr::CXXNullPtrLiteralExprClass:
   case Expr::UserDefinedLiteralClass:
   case Expr::CXXThisExprClass: