Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
// RUN: rm -rf %t // RUN: %clang_cc1 -fmodules -emit-module -fmodule-name=Misplaced -fmodules-cache-path=%t -x c++ -I %S/Inputs %S/Inputs/misplaced/misplaced.modulemap -verify