vim-patch:7.4.1758
Problem: Triggering CursorHoldI when in CTRL-X mode causes problems.
Solution: Do not trigger CursorHoldI in CTRL-X mode. Add "!" flag to
feedkeys() (test with that didn't work though).
245c41070c
vim-patch:7.4.1759
Problem: When using feedkeys() in a timer the inserted characters are not
used right away.
Solution: Break the wait loop when characters have been added to typebuf.
use this for testing CursorHoldI.
40b1b5443c
vim-patch:7.4.1692
Problem: feedkeys('i', 'x') gets stuck, waits for a character to be typed.
Solution: Behave like ":normal". (Yasuhiro Matsumoto)
Problem: Using feedkeys() with an empty string disregards 'x' option.
Solution: Make 'x' work with an empty string. (Thinca)
When integrating the patch to nvim, used same logic but different code
based on nvim codebase. New test passed.
74c5bbf134