Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

preprocessed-output-macro-first-token.c
// This is the first thing other than comments and preprocessor stuff in the
// file.
//
// RUN: %clang_cc1 -fms-extensions -E %s
#pragma comment(lib, "somelib")