Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

test.cpp
// RUN: clang-import-test --import %S/Inputs/S1.cpp --import %S/Inputs/S2.cpp -expression %s
void expr() {
  S MyS;
  T MyT;
  MyS.a = 3;
  MyT.u.b = 2;
}