Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
// RUN: %clang_cc1 %s -E | grep 'a: 2\*f(9)' // RUN: %clang_cc1 %s -E | grep 'b: 2\*9\*g' #define f(a) a*g #define g f a: f(2)(9) #undef f #undef g #define f(a) a*g #define g(a) f(a) b: f(2)(9)