Problem:    Recursive call to substitute gets stuck in sandbox. (Nikolai
            Pavlov)
Solution:   Handle the recursive call. (Christian Brabandt, closes vim/vim#950)
            Add a test.

https://github.com/vim/vim/commit/f5a39447a8ebe162ee62caa2ee502cd0e65eecaa

Closes #5118

Problem:    Equivalence classes are not properly tested.
Solution:   Add tests for multi-byte and latin1. Fix an error. (Owen Leibman)

https://github.com/vim/vim/commit/22e421549d54147d003f6444de007cb1d73f1d27

src/regexp.c changes weren't applied because they're specific to EBCDIC
handling, which has been dropped from nvim.

The latin1-specific tests were also removed since neovim intends to
remove the ability to have 'encoding' set to anything other than utf8.

Problem:    getcompletion(.., 'dir') returns a match with trailing "*" when
            there are no matches. (Chdiza)
Solution:   Return an empty list when there are no matches.  Add a trailing
            slash to directories. (Yegappan Lakshmanan)  Add tests for no
            matches. (closes vim/vim#947)

https://github.com/vim/vim/commit/b56195ed00a9a79aa6217cddbeedbc8cc7a5b6d8

Problem:    Windows cannot be identified.
Solution:   Add a unique window number to each window and functions to use it.

https://github.com/vim/vim/commit/86edef664efccbfe685906c854b9cdd04e56f2d5

vim-patch:7.4.2011

Problem:    It is not easy to get a list of command arguments.
Solution:   Add getcompletion(). (Yegappan Lakshmanan)

https://github.com/vim/vim/commit/aa4d73235bf4deee167aa5314b89ae3d3db334b7

vim-patch:7.4.2012

Problem:    Test for getcompletion() does not pass on all systems.
Solution:   Only test what is supported.

https://github.com/vim/vim/commit/0d3e24be5686c0710aa3c6671e4c626d6cb21a5f

vim-patch:7.4.2066

Problem:    getcompletion() not well tested.
Solution:   Add more testing.

https://github.com/vim/vim/commit/c1fb763184c8ae82300357867fa2070aa94366e9

vim-patch:7.4.2013

Problem:    Using "noinsert" in 'completeopt' breaks redo.
Solution:   Set compl_curr_match. (Shougo, closes vim/vim#874)

https://github.com/vim/vim/commit/67081e50616ae9546621072c5eaaa59bd0a4bed7

vim-patch:7.4.2014

Problem:    Using "noinsert" in 'completeopt' does not insert match.
Solution:   Set compl_enter_selects. (Shougo, closes #875)

https://github.com/vim/vim/commit/32b808a4bdf35b0dea63c735702a591e5869fecd

Problem:    test_writefile and test_viml do not delete the tempfile.
Solution:   Delete the tempfile. (Charles Cooper)  Add DeleteTheScript().

https://github.com/vim/vim/commit/f4f79b84a5595c511f6fdbe4e3e1d188d97879a0

Problem:    Visual-block shift breaks multi-byte characters.
Solution:   Compute column differently. (Yasuhiro Matsumoto) Add a test.

https://github.com/vim/vim/commit/20b4f463f4ab50fa9bcc9838aa94101fa5698125

Problem:    Cannot execute a single test function.
Solution:   Add an argument to filter the functions with. (Yasuhiro Matsumoto)

https://github.com/vim/vim/commit/befb366affa6309c6b4a469ec7f729821e3a36fa