Hooking

<function> hookfunction(<function> old, <function> new, <bool?> ignore_sizecheck = false)

Having ignore_sizecheck to true can cause instability and is not recommended.

Hooks old with new. The return value is old backed up.

<function> newcclosure(<function> old)

Yielding is not supported on newcclosure.

Makes an LClosure into a CClosure.