Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
RUN: yaml2obj %S/Inputs/macho.yaml -o %t.o RUN: rm -f %t.ar RUN: llvm-ar --format=gnu crs %t.ar %t.o RUN: not grep -q __.SYMDEF %t.ar Ensure that we honour a specific request