Change latex provider to luatex, closes #476

autoload/vimtex/syntax/p/asymptote.vim

@@ -0,0 +1,34 @@
+if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'latex') == -1
+
+" vimtex - LaTeX plugin for Vim
+"
+" Maintainer: Karl Yngve Lervåg
+" Email:      karl.yngve@gmail.com
+"
+
+function! vimtex#syntax#p#asymptote#load() abort " {{{1
+  if has_key(b:vimtex_syntax, 'asymptote') | return | endif
+  let b:vimtex_syntax.asymptote = 1
+
+  call vimtex#syntax#misc#add_to_section_clusters('texZoneAsymptote')
+
+  if !empty(vimtex#syntax#misc#include('asy'))
+    syntax region texZoneAsymptote
+          \ start='\\begin{asy\z(def\)\?}'rs=s
+          \ end='\\end{asy\z1}'re=e
+          \ keepend
+          \ transparent
+          \ contains=texBeginEnd,@vimtex_nested_asy
+  else
+    syntax region texZoneAsymptote
+          \ start='\\begin{asy\z(def\)\?}'rs=s
+          \ end='\\end{asy\z1}'re=e
+          \ keepend
+          \ contains=texBeginEnd
+    highlight def link texZoneAsymptote texZone
+  endif
+endfunction
+
+" }}}1
+
+endif