Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

2010-01-14-FnType-DebugInfo.c
// RUN: %clang_cc1 %s -emit-llvm -debug-info-kind=limited -o /dev/null
typedef void (*sigcatch_t)( struct sigcontext *);
sigcatch_t sigcatch[50] = {(sigcatch_t) 0};