Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

emit-all-decls.c
// RUN: %clang_cc1 -emit-llvm -o %t %s
// RUN: not grep "@foo" %t
// RUN: %clang_cc1 -femit-all-decls -emit-llvm -o %t %s
// RUN: grep "@foo" %t

static void foo(void) {
  
}