Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

pc-rel-targets.test
// RUN: llvm-objdump -d %p/Inputs/kextbundle.macho-aarch64 | FileCheck %s

CHECK:  4008:       94000003        bl      0x4014 <_bar.stub>