Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

dash-n.s
// RUN: not llvm-mc -n -triple i386-unknown-unknown %s 2> %t
// RUN: FileCheck < %t %s

.globl a
// CHECK: error: expected section directive before assembly directive
.long 0