Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

file.test
RUN: llvm-objdump -t %p/Inputs/file.obj.coff-arm | FileCheck %s

CHECK: .file
CHECK-NEXT: AUX /Users/compnerd/work/llvm/test/tools/llvm-readobj/Inputs/file.asm
CHECK-NEXT: [{{[ 0-9]+}}]