Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
// RUN: rm -rf %t // RUN: %clang_cc1 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -I %S/Inputs %s -verify -Wno-objc-root-class // expected-no-diagnostics @import redecl_merge_bottom.prefix; DeclaredThenLoaded *dtl;