Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

2003-05-21-EmptyStructTest.ll
; RUN: llvm-as %s -o /dev/null
; RUN: verify-uselistorder %s

; The old C front-end never generated empty structures, now the new one
; can.  For some reason we never handled them in the parser. Weird.

@X = global {  } zeroinitializer