Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

2002-12-15-GlobalResolve.ll
; RUN: llvm-as %s -o /dev/null
; RUN: verify-uselistorder %s

@X = external global i32*
@X1 = external global %T* 
@X2 = external global i32*

%T = type {i32}