Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

p2.cpp
// RUN: %clang_cc1 %s -fsyntax-only -verify
// expected-no-diagnostics

// "During the lookup for a base class name, non-type names are ignored"
namespace PR5840 {
  struct Base {};
  int Base = 10;
  struct Derived : Base {};
}