Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

xray-instrument-cpu.c
// RUN: not %clang -o /dev/null -v -fxray-instrument -c %s
// XFAIL: amd64-, x86_64-, x86_64h-, arm, aarch64, arm64, powerpc64le-, mips, mipsel, mips64, mips64el
// REQUIRES: linux
typedef int a;