Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

directive-object_arch-3.s
@ RUN: llvm-mc -triple armv7-eabi -filetype asm -o - %s | FileCheck %s

	.syntax unified

	.arch armv7
	.object_arch armv4

@ CHECK: .text
@ CHECK: .arch	armv7
@ CHECK: .object_arch	armv4