Patch to prevent crash on use of objc2 syntax.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@44617 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Sema/SemaExpr.cpp b/Sema/SemaExpr.cpp
index b08695f..ed71934 100644
--- a/Sema/SemaExpr.cpp
+++ b/Sema/SemaExpr.cpp
@@ -106,6 +106,8 @@
   }
   if (isa<TypedefDecl>(D))
     return Diag(Loc, diag::err_unexpected_typedef, II.getName());
+  if (isa<ObjcInterfaceDecl>(D))
+    return Diag(Loc, diag::err_unexpected_interface, II.getName());
 
   assert(0 && "Invalid decl");
   abort();