Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
@ RUN: not llvm-mc -triple armv7 -filetype asm -o /dev/null %s 2>&1 \ @ RUN: | FileCheck %s -strict-whitespace .text .thumb .fpu invalid @ CHECK: error: Unknown FPU name @ CHECK: .fpu invalid @ CHECK: ^