commit https://github.com/vim/vim/commit/16b3578f355282846f2600ce77fb344950f0b9ce Author: Bram Moolenaar <Bram@vim.org> Date: Fri Sep 9 20:29:50 2016 +0200 patch 7.4.2355 Problem: Regexp fails to match when using "\>\)\?". (Ramel) Solution: When a state is already in the list, but addstate_here() is used and the existing state comes later, add the new state anyway.

" Vim compiler file
" Compiler:	Microsoft Visual C
" Maintainer:	Bram Moolenaar <Bram@vim.org>
" Last Change:	2014 Sep 20

if exists("current_compiler")
  finish
endif
let current_compiler = "msvc"

" The errorformat for MSVC is the default.
CompilerSet errorformat&
CompilerSet makeprg=nmake