Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

dollars-in-identifiers.s
# RUN: llvm-mc -triple i386-unknown-unknown %s > %t
# RUN: FileCheck < %t %s

// CHECK: .globl $foo
.globl $foo
// CHECK: .long ($foo)
.long ($foo)