// RUN:%clang_cc1 -fsyntax-only -verify %s
@interface I
+ new; // expected-note {{method 'new' is used for the forward class}}
@endClass isa;
@class NotKnown; // expected-note{{forward declaration of class here}}
void foo(NotKnown *n) {[isa new];[NotKnown new];/* expected-warning {{receiver 'NotKnown' is a forward class and corresponding}} */}