Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

chain.c
// This test should fail. lit used to interpret this as:
//   (false && false) || true
// instead of the intended
//   false && (false || true
//
// RUN: false
// RUN: false || true
//
// XFAIL: *