patch 7.4.2243

Problem:    Warning for assigning negative value to unsigned. (Danek Duvall)
Solution:   Make cterm_normal_fg_gui_color and _bg_ guicolor_T, cast to long_u
            only when an unsigned is needed.

patch 7.4.2242

Problem:    Timer test sometimes fails.
Solution:   Increase the maximum time for callback timer test.

patch 7.4.2241

Problem:    Timer test sometimes fails.
Solution:   Increase the maximum time for repeating timer.

patch 7.4.2240

Problem:    Tests using the sleep time can be flaky.
Solution:   Use reltime() if available. (Partly by Shane Harper)

patch 7.4.2239

Problem:    Warning for missing declaration of skip_vimgrep_pat(). (John
            Marriott)
Solution:   Move it to another file.

patch 7.4.2238

Problem:    With SGR mouse reporting (suckless terminal) the mouse release and
            scroll up/down is confused.
Solution:   Don't see a release as a scroll up/down. (Ralph Eastwood)

patch 7.4.2237

Problem:    Can't use "." and "$" with ":tab".
Solution:   Support a range for ":tab". (Hirohito Higashi)

patch 7.4.2236

Problem:    The 'langnoremap' option leads to double negatives.  And it does
            not work for the last character of a mapping.
Solution:   Add 'langremap' with the opposite value.  Keep 'langnoremap' for
            backwards compatibility.  Make it work for the last character of a
            mapping.  Make the test work.

patch 7.4.2235

Problem:    submatch() does not check for a valid argument.
Solution:   Give an error if the argument is out of range. (Dominique Pelle)

patch 7.4.2234

Problem:    Can't build with +eval but without +quickfix. (John Marriott)
Solution:   Move skip_vimgrep_pat() to separate #ifdef block.