Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

2007-11-28-GlobalInitializer.c
// RUN: %clang_cc1 -emit-llvm %s -o - 
// PR1744
typedef struct foo { int x; char *p; } FOO;
extern FOO yy[];

int *y = &((yy + 1)->x);
void *z = &((yy + 1)->x);