Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

C.h
#ifndef C_H
#define C_H
#include <A/ADT.h>

namespace llvm {
class D {
  struct Q {
    unsigned a, b, c, d;
  };
  SmallVector<Q, 4> q;
};
} // namespace llvm
#endif