commit https://github.com/vim/vim/commit/7ab6defcafe017a3ad58580a3e56dab705b1ed8b Author: Bram Moolenaar <Bram@vim.org> Date: Fri Aug 5 22:51:13 2016 +0200 patch 7.4.2161 Problem: Expression test fails without conceal feature. Solution: Only check "conceal" with the conceal feature.

" A series of tests that can run in one Vim invocation.
" This makes testing go faster, since Vim doesn't need to restart.

" These tests use latin1 'encoding'.  Setting 'encoding' is in the individual
" files, so that they can be run by themselves.

source test_regexp_latin.vim