Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

deadcode_strip_used_var.m
// RUN: %clang_cc1 %s -emit-llvm -o %t -triple i386-apple-darwin10 -fobjc-runtime=macosx-fragile-10.5
// RUN: grep "llvm.used" %t | count 1
// RUN: %clang_cc1 %s -emit-llvm -o %t -triple x86_64-apple-darwin10 -fobjc-runtime=macosx-fragile-10.5
// RUN: grep "llvm.used" %t | count 1 


__attribute__((used)) static int  XXXXXX  __attribute__ ((section ("__DATA,__Xinterpose"))) ;
__attribute__((used)) static int  YYYY  __attribute__ ((section ("__DATA,__Xinterpose"))) ;