RE: delete-windows-on

[Drew Adams]

>  >> 2. Besides, it is not the purpose of `delete-windows-on' 
>  >> to determine whether the BUFFER arg in fact corresponds
>  >> to an existing buffer or someone just fucked
>  >> up. Its purpose is to delete a window (or do nothing).
>  >
>  > No. Its purpose is to "[d]elete all windows showing 
>  > BUFFER-OR-NAME." An incorrect BUFFER-OR-NAME is an error.
> 
> A BUFFER-OR-NAME argument must be treated consistently through all
> functions that have it. So raising an error is obviously TRT here.

I guess you're right about that.

I was thinking that there might be some functions that did not raise an error
for a non-string, non-buffer, but it seems they all ultimately call
`get-buffer', which chokes if not a string or a buffer.