Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
// RUN: rm -rf %t // RUN: %clang -fmodule-maps -fmodules-cache-path=%t -fmodules-decluse -fmodule-name=XS -I %S/Inputs/declare-use -S %s -Xclang -verify // expected-no-diagnostics #include "s.h"