commit https://github.com/vim/vim/commit/cf2d8dee5117b9add3a3f5fc91b3569437e7d359 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Mar 28 21:04:37 2016 +0200 patch 7.4.1674 Problem: The editexisting plugin has to be copied or sourced to be used. Solution: Turn it into a package.

Test for search('multi-byte char', 'bce')

STARTTEST
:source small.vim
:source mbyte.vim
:set encoding=utf-8
:/^Test bce:/+1
:$put =search('Ａ', 'bce', line('.'))
:1;/^Results:/,$wq! test.out
ENDTEST

Results:

Test bce:
Ａ