vim9: script local function name starting with a lower-case letter

[Yegappan Lakshmanan]

Hi,

In legacy Vim scripts, a script local function prefixed with "s:" can
start with a lower-case letter. A Vim9 function explicitly prefixed
using "s:"can also start with a lower-case letter.

But a vim9 function name that doesn't have an explicit "s:" prefix
cannot start with a lower-case letter. A Vim9 function has a script-local
scope by default.  So should it be allowed to start with a lower-case
letter?

Regards,

Yegappan

[Bram Moolenaar]

I suppose we could allow it. The idea is that we don't want a user
defined function shadow a builtin function unexpectedly, also when the
builtin function is added a year later. That is a problem for global
functions, not su much for script-local functions. It still shadows the
builtin function, but it's local to a script, so you know what function
you want to call.

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