Problem:    The effect of the PopupMenu autocommand isn't directly visible.
Solution:   Call gui_update_menus() before displaying the popup menu. (Shane
            Harper, closs #855)

Problem:    Executing autocommands while using the signal stack has a high
            chance of crashing Vim.
Solution:   Don't invoke autocommands when on the signal stack.

Problem:    When ":doautocmd" is used modelines are used even when no
            autocommands were executed. (Daniel Hahler)
Solution:   Skip processing modelines. (closes #854)

Problem:    No test for using setqflist() on an older quickfix list.
Solution:   Add a couple of tests.

Problem:    Recent history lines may be lost when exiting Vim.
Solution:   Merge history using the timestamp.

Problem:    Tests using external command to delete directory.
Solution:   Use delete().

Problem:    Doubled semicolons.
Solution:   Reduce to one. (Dominique Pelle)

Problem:    Netbeans uses uninitialzed pointer and freed memory.
Solution:   Set "buffer" at the right place (hint by Ken Takata)

Problem:    Warnings from 64 bit compiler.
Solution:   Change type to size_t. (Mike Williams)

Problem:    Collapsing channel buffers and searching for NL does not work
            properly. (Xavier de Gary, Ramel Eshed)
Solution:   Do not assume the buffer contains a NUL or not.  Change NUL bytes
            to NL to avoid the string is truncated.

Problem:    Some compilers can't handle a double semicolon.
Solution:   Remove one semicolon.

Problem:    Build fails.
Solution:   Add missing changes.

Problem:    When writing viminfo merging current history with history in
            viminfo may drop recent history entries.
Solution:   Add new format for viminfo lines, use it for history entries.  Use
            a timestamp for ordering the entries. Add test_settime().
            Add the viminfo version.  Does not do merging on timestamp yet.

Problem:    No test for collapsing buffers for a channel.  Some text is lost.
Solution:   Add a simple test.  Set rq_buflen correctly.

Problem:    Win32: the "Disabled" menu items would appear enabled.
Solution:   Use submenu_id if there is a parent. (Shane Harper, closes #834)

Problem:    Using CTRL-] in the help on "{address}." doesn't work.
Solution:   Recognize an item in {}. (Hirohito Higashi, closes #814)

Problem:    GTK 3: cursor blinking doesn't work well.
Solution:   Instead of gui_gtk_window_clear() use gui_mch_clear_block().
            (Kazunobu Kuriyama)

Problem:    User commands don't support modifiers.
Solution:   Add the <mods> item. (Yegappan Lakshmanan, closes #829)

Problem:    Various typos, long lines and style mistakes.
Solution:   Fix the typos, wrap lines, improve style.

Problem:    Invoking mark_adjust() when adding a new line below the last line
            is pointless.
Solution:   Skip calling mark_adjust() when appending below the last line.

Problem:    Cannot use a window ID where a window number is expected.
Solution:   Add LOWEST_WIN_ID, so that the window ID can be used where a
            number is expected.

Problem:    Cannot get the window ID for a mouse click.
Solution:   Add v:mouse_winid.

Problem:    Cannot easily get the window ID for a buffer.
Solution:   Add bufwinid().

Problem:    balloon eval only gets the window number, not the ID.
Solution:   Add v:beval_winid.

Problem:    Channel reading very long lines is slow.
Solution:   Collapse multiple buffers until a NL is found.

Problem:    GUI: When channel data is received the cursor blinking is
            interrupted.  (Ramel Eshed)
Solution:   Don't update the cursor when it is blinking.

Problem:    When umask is set to 0177 Vim can't create temp files. (Lcd)
Solution:   Also correct umask when using mkdtemp().

Problem:    Wrong computation of remaining wait time in RealWaitForChar()
Solution:   Remember the original waiting time.

Problem:    When receiving channel data 'updatetime' is not respected.
Solution:   Recompute the waiting time after being interrupted.

Problem:    When waiting for a character is interrupted by receiving channel
            data and the first character of a mapping was typed, the mapping
            times out. (Ramel Eshed)
Solution:   When dealing with channel data don't return from mch_inchar().

Problem:    MinGW console build defaults to not having +channel.
Solution:   Include the channel feature if building with huge features. (Ken
            Takata)

Problem:    Updating marks in a quickfix list is very slow when the list is
            long.
Solution:   Only update marks if the buffer has a quickfix entry.

Problem:    Cppcheck found 2 incorrect printf formats.
Solution:   Use %ld and %lx. (Dominique Pelle)

Problem:    Check for line break at end of line wrong. (Dominique Pelle)
Solution:   Correct the logic.

Problem:    Appending to a long quickfix list is slow.
Solution:   Add qf_last.

Problem:    MS-Windows console build defaults to not having +channel.
Solution:   Include the channel feature if building with huge features.

Problem:    Channel test is flaky.
Solution:   Wait for close_cb to be invoked.

Problem:    Whether a job has exited isn't detected until a character is
            typed.  After calling exit_cb the cursor is in the wrong place.
Solution:   Don't wait forever for a character to be typed when there is a
            pending job.  Update the screen if neede after calling exit_cb.

Problem:    No test for invoking "close_cb" when writing to a buffer.
Solution:   Add using close_cb to a test case.