Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
// RUN: %clang_cc1 %s -verify // PR36157 struct Foo { Foo(int n) : n_(n) {} // expected-error 1+{{}} expected-warning 1+{{}} private: int n; }; int main() { Foo f; } // expected-error 1+{{}}