Problem: Alloc() returning "char_u *" causes a lot of type casts.
Solution: Have it return "void *". (Mike Williams) Define ALLOC_ONE() to
check the simple allocations.
Problem: Using "int" for alloc() often results in compiler warnings.
Solution: Use "size_t" and remove type casts. Remove alloc_check(), Vim
only works with 32 bit ints anyway.
Problem: Macros for MS-Windows are inconsistent, using "32", "3264 and
others.
Solution: Use MSWIN for all MS-Windows builds. Use FEAT_GUI_MSWIN for the
GUI build. (Hirohito Higashi, closes#3932)
Problem: Giving error messages is not flexible.
Solution: Add semsg(). Change argument from "char_u *" to "char *", also
for msg() and get rid of most MSG macros. (Ozaki Kiichi, closes
#3302) Also make emsg() accept a "char *" argument. Get rid of
an enormous number of type casts.
Problem: Deleting signs and completion for :sign is insufficient.
Solution: Add deleting signs in a specified or any group from the current
cursor location. Add group and priority to sign command
completion. Add tests for different sign unplace commands. Update
help text. Add tests for sign jump with group. Update help for
sign jump. (Yegappan Lakshmanan, closes#3731)
Problem: Placing signs can be complicated.
Solution: Add functions for defining and placing signs. Introduce a group
name to avoid different plugins using the same signs. (Yegappan
Lakshmanan, closes#3652)
Problem: Xdiff doesn't use the Vim memory allocation functions.
Solution: Change the xdl_ defines. Check for out-of-memory. Rename
"ignored" to "vim_ignored".
Problem: Slow redrawing with DirectX.
Solution: Avoid calling gui_mch_flush() unnecessarily, especially when
updating the cursor. (Ken Takata, closes#2560)
Problem: balloon_show() only works in terminal when compiled with the GUI.
Solution: Add FEAT_BEVAL_GUI and refactor to move common code out of the GUI
specific file.
Problem: FEAT_WINDOWS adds a lot of #ifdefs while it is nearly always
enabled and only adds 7% to the binary size of the tiny build.
Solution: Graduate FEAT_WINDOWS.
Problem: When writing buffer lines to a job there is no NL to NUL
conversion.
Solution: Make it work symmetrical with writing lines from a job into a
buffer.
Problem: On MS-Windows large files (> 2Gbyte) cause problems.
Solution: Use "off_T" instead of "off_t". Use "stat_T" instead of "struct
stat". Use 64 bit system functions if available. (Ken Takata)
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: When calling ch_close() the close callback is invoked, even though
the docs say it isn't. (Christian J. Robinson)
Solution: Don't call the close callback.
Problem: Using DETACH in quotes is not compatible with the Netbeans
interface. (Xavier de Gaye)
Solution: Remove the quotes, only use them for JSON and JS mode.
Problem: When the port isn't opened yet when ch_open() is called it may
fail instead of waiting for the specified time.
Solution: Loop when select() succeeds but when connect() failed. Also use
channel logging for jobs. Add ch_log().
