Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
// RUN: %clang_cc1 -E %s -o - | FileCheck %s #if __has_feature(objc_boxed_nsvalue_expressions) int has_objc_boxed_nsvalue_expressions(); #endif // CHECK: has_objc_boxed_nsvalue_expressions