Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
; 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 }