Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
// RUN: %clang_cc1 -fsyntax-only %s -verify // expected-no-diagnostics enum A { A1, A2, A3 }; typedef enum A A; void test(void) { A a; a++; a--; ++a; --a; a = a + 1; a = a - 1; }