Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
// RUN: FileCheck -check-prefix=AAAOVERLAP -check-prefix=OVERLAP -input-file %s %s foo bar buzz // Use regex notation so the checks don't match themselves. OVERLAP: fo{{o}} AAAOVERLAP: ba{{r}} OVERLAP: buz{{z}}