Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
@ RUN: llvm-mc < %s -triple armv5tej-elf -filetype=obj | llvm-objdump -d - | FileCheck %s bxj: bxj r0 @ CHECK-LABEL: bxj @ CHECK: e12fff20 bxj r0