Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
// RUN: %clangxx -### %s 2>&1 | FileCheck %s // // PR5803 // // CHECK: warning: treating 'c' input as 'c++' when in C++ mode, this behavior is deprecated // CHECK: "-cc1" {{.*}} "-x" "c++"