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/Sema/AttributeList.cpp b/lib/Sema/AttributeList.cpp
index e227d4e..9ac4c63 100644
--- a/lib/Sema/AttributeList.cpp
+++ b/lib/Sema/AttributeList.cpp
@@ -23,6 +23,8 @@
   if (IsAvailability) return AttributeFactory::AvailabilityAllocSize;
   else if (IsTypeTagForDatatype)
     return AttributeFactory::TypeTagForDatatypeAllocSize;
+  else if (IsProperty)
+    return AttributeFactory::PropertyAllocSize;
   return (sizeof(AttributeList) + NumArgs * sizeof(Expr*));
 }