Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
; RUN: opt -disable-output -passes=helloworld %s 2>&1 | FileCheck %s ; CHECK: {{^}}foo{{$}} define i32 @foo() { %a = add i32 2, 3 ret i32 %a } ; CHECK-NEXT: {{^}}bar{{$}} define void @bar() { ret void }