Problem:    Information about a swap file is unavailable.
Solution:   Add swapinfo(). (Enzo Ferber)

Problem:    There is no good way to get the window layout.
Solution:   Add the winlayout() function. (Yegappan Lakshmanan)

Problem:    No redraw when using a STOP signal on Vim and then a CONT signal.
Solution:   Catch the CONT signal and set the terminal to raw mode.  This is
            like 8.1.0244 but without the screen redraw and a fix for
            multi-threading suggested by Dominique Pelle.

Problem:    Crash when using :suspend and "fg".
Solution:   Undo patch 8.1.244.

Problem:    GTK: Input method popup displayed on wrong screen.
Solution:   Add the screen position offset. (Ken Takata, closes #3268)

Problem:    Quickfix code uses cmdidx too often.
Solution:   Add is_loclist_cmd(). (Yegappan Lakshmanan)

Problem:    'incsearch' does not work with command modifiers.
Solution:   Skip command modifiers.

Problem:    Parsing command modifiers is not separated.
Solution:   Move command modifier parsing to a separate function.

Problem:    Parsing Ex address range is not a separate function.
Solution:   Refactor do_one_cmd() to separate address parsing.

Problem:    Saving and restoring window title does not always work.
Solution:   Use the stack push and pop commands. (Kouichi Iwamoto,
            closes #3059)