Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
// RUN: %clang_cc1 -fsyntax-only -std=c++11 -Wno-c++11-narrowing -verify %s // expected-no-diagnostics // <rdar://problem/11121178> void f(int x) { switch (x) { case 0x80000001: break; } }