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// RUN: clang -rewrite-objc %s -o=- @protocol P - (id<P>) Meth: (id<P>) Arg; @end @interface INTF<P> - (id<P>)IMeth; @end @implementation INTF - (id<P>)IMeth { return [(id<P>)self Meth: (id<P>)0]; } - (id<P>) Meth : (id<P>) Arg {} @end