Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
// RUN: not %clang_cc1 -fsyntax-only %s 2>&1 | FileCheck %s #include "macro_arg_slocentry_merge.h" // CHECK: macro_arg_slocentry_merge.h:7:19: error: unknown type name 'win'