Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

t7.cpp
// RUN: rm -fr %t
// RUN: mkdir %t
// RUN: %clang_cc1 -std=c++20 -I%S/Inputs/ %s -verify
// expected-no-diagnostics
module;
#include "h7.h"
export module X;