OpaquePtr: Use nullptr construction for DeclGroupPtrTy OpaquePtr typedef

llvm-svn: 257956
diff --git a/clang/lib/Parse/ParseStmt.cpp b/clang/lib/Parse/ParseStmt.cpp
index edf0dda..6c27b27 100644
--- a/clang/lib/Parse/ParseStmt.cpp
+++ b/clang/lib/Parse/ParseStmt.cpp
@@ -1632,7 +1632,7 @@
       ConsumeToken(); // consume 'in'
 
       if (Tok.is(tok::code_completion)) {
-        Actions.CodeCompleteObjCForCollection(getCurScope(), DeclGroupPtrTy());
+        Actions.CodeCompleteObjCForCollection(getCurScope(), nullptr);
         cutOffParsing();
         return StmtError();
       }