Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
// RUN: %clang_cc1 -fsyntax-only -verify %s // <rdar://problem/6211479> typedef int T[2]; @interface A @property(assign) T p2; // expected-error {{property cannot have array or function type 'T' (aka 'int[2]')}} @end