runtime(compilers): ensure compiler! sets global options (vim/vim#14336)
Previously some options were only set locally by
&l:makeprg/errorformat
This suffices for :compiler (without a trailing bang)
but falls short for :compiler! that sets &g:makeprg/errorformat as
well
Also apply kind suggestions by @dkearns and @lifepillar
18d730d7b5
omit context.vim (vim9script only)
Co-authored-by: Enno <Konfekt@users.noreply.github.com>
6b9a808d13
