commit https://github.com/vim/vim/commit/7a9a5f4019ce332cb11ce5370e3fa609299ce737 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Aug 8 22:34:14 2016 +0200 patch 7.4.2184 Problem: Tests that use RunVim() do not actually perform the test. Solution: Use "return" instead of "call". (Ken Takata)

" Vim support file to switch off detection of file types
"
" Maintainer:	Bram Moolenaar <Bram@vim.org>
" Last change:	2001 Jun 11

if exists("did_load_filetypes")
  unlet did_load_filetypes
endif

" Remove all autocommands in the filetypedetect group
silent! au! filetypedetect *