Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

simpletest.ll
; RUN: %lli -jit-kind=mcjit %s > /dev/null
; RUN: %lli %s > /dev/null

define i32 @bar() {
	ret i32 0
}

define i32 @main() {
	%r = call i32 @bar( )		; <i32> [#uses=1]
	ret i32 %r
}