Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
// REQUIRES: !zlib // RUN: not llvm-mc -filetype=obj -compress-debug-sections=zlib -triple x86_64-pc-linux-gnu %s -o - 2>&1 | FileCheck %s // CHECK: llvm-mc{{[^:]*}}: error: build tools with zlib to enable -compress-debug-sections