Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
// RUN: not FileCheck -check-prefix=SOMEPREFIX -input-file %s %s // RUN: FileCheck -check-prefix=ANOTHER -input-file %s %s asdf ; SOMEPREFIX: {{t}}his_is_not_asdf ; ANOTHER: {{a}}sdf