Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
// RUN: cd %S && %clang -### -g %s -c 2>&1 | FileCheck -check-prefix=CHECK-PWD %s // RUN: cd %S && %clang -x c -### -g %s -c 2>&1 | FileCheck -check-prefix=CHECK-PWD %s // CHECK-PWD: "-fdebug-compilation-dir={{.*Driver.*}}"