Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

invalid-uselistorder-indexes-empty.ll
; RUN: not llvm-as < %s -disable-output 2>&1 | FileCheck %s
; CHECK: error: value has no uses
@global = global i32 0
uselistorder i32* @global, { 1, 0 }