Problem: getwininfo() and getbufinfo() are inefficient.
Solution: Do not make a copy of all window/buffer-local options. Make it
possible to get them with gettabwinvar() or getbufvar().
Problem: Adding pattern to ":oldfiles" is not a generic solution.
Solution: Add the ":filter /pat/ cmd" command modifier. Only works for some
commands right now.
Problem: There is no equivalent of 'smartcase' for a tag search.
Solution: Add value "followscs" and "smart" to 'tagcase'. (Christian
Brabandt, closes#712) Turn tagcase test into new style.
Problem: The field names used by getbufinfo(), gettabinfo() and
getwininfo() are not consistent.
Solution: Use bufnr, winnr and tabnr. (Yegappan Lakshmanan)
Problem: It's not easy to find out if a window is a quickfix or location
list window.
Solution: Add "loclist" and "quickfix" entries to the dict returnec by
getwininfo(). (Yegappan Lakshmanan)
Problem: It is not easy to get information about buffers, windows and
tabpages.
Solution: Add getbufinfo(), getwininfo() and gettabinfo(). (Yegappan
Lakshmanan)
Problem: It is not possible to use plugins in an "after" directory to tune
the behavior of a package.
Solution: First load plugins from non-after directories, then packages and
finally plugins in after directories.
Reset 'loadplugins' before executing --cmd arguments.
Problem: Using function() with a name will find another function when it is
redefined.
Solution: Add funcref(). Refer to lambda using a partial. Fix several
reference counting issues.
Problem: User defined functions can't be a closure.
Solution: Add the "closure" argument. Allow using :unlet on a bound
variable. (Yasuhiro Matsumoto, Ken Takata)
Problem: Setting 'display' to "lastline" is a drastic change, while
omitting it results in lots of "@" lines.
Solution: Add "truncate" to show "@@@" for a truncated line.
Problem: Using submatch() in a lambda passed to substitute() is verbose.
Solution: Use a static list and pass it as an optional argument to the
function. Fix memory leak.
Problem: filter() and map() either require a string or defining a function.
Solution: Support lambda, a short way to define a function that evaluates an
expression. (Yasuhiro Matsumoto, Ken Takata)
