Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

woa-wchar_t.c
// RUN: %clang_cc1 -dM -triple armv7-windows -E %s | FileCheck %s
// RUN: %clang_cc1 -dM -fno-signed-char -triple armv7-windows -E %s | FileCheck %s

// CHECK: #define __WCHAR_TYPE__ unsigned short