Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
// RUN: %clang_cc1 -emit-llvm -o %t %s @interface SUPER + (void)Meth; @end @interface CURRENT : SUPER + (void)Meth; @end @implementation CURRENT(CAT) + (void)Meth { [super Meth]; } @end