Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
// RUN: %clang -### -c -flto -fno-lto %s 2>&1 | FileCheck %s // RUN: %clang -### -c -flto -fno-lto -fno-integrated-as %s 2>&1 | FileCheck %s // CHECK-NOT: argument unused during compilation