Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
// RUN: %clang_cc1 -debug-info-kind=limited -triple=x86_64-apple-darwin %s -o /dev/null // PR 8913 typedef __uint128_t word128; static const word128 m126 = 0xffffffffffffffffULL; word128 foo() { return m126; }