vim: Import v8.2.4488

* 8.2.4488: build error with +eval but without +channel or +job
* 8.2.4487: Vim9: cannot compare with v:null
* 8.2.4486: MS-Windows GUI: slow scrolling with maximized window

Author: chrisbra

gitlog.txt

@@ -1 +1 @@
-* [8.2.4485](https://github.com/vim/vim/commit/3e7637bd266da43c9158f0e1cfe3f7f7843d7147): compiler warning for uninitialized variable\n* [8.2.4484](https://github.com/vim/vim/commit/1983f1aa315711852174be1b7089f71e24c19e27): Vim9: some error messages are not tested\n* [8.2.4483](https://github.com/vim/vim/commit/5de4c4372d4366bc85cb66efb3e373439b9471c5): command completion makes two rounds to collect matches\n* [8.2.4482](https://github.com/vim/vim/commit/afd4ae35d66b2e7732eceb5ad9f6b4ece6b7c64c): no fuzzy cmdline completion for user defined completion\n* [8.2.4481](https://github.com/vim/vim/commit/5c52be40fbab14e050d7494d85be9039f07f7f8f): cmdline popup menu not removed when 'lazyredraw' is set\n* [8.2.4480](https://github.com/vim/vim/commit/cbef12e60b2c5a4f026172ab9873deaab2e70cf2): suspending with CTRL-Z does not work on Android\n* [8.2.4479](https://github.com/vim/vim/commit/6caeda2fce4bccac2dd43ca9fee1d32ee96b708d): no fuzzy completieon for maps and abbreviations
+* [8.2.4488](https://github.com/vim/vim/commit/f6b0c79742727948edee78cb1a3a9a4e3be8b0fd): build error with +eval but without +channel or +job\n* [8.2.4487](https://github.com/vim/vim/commit/7a2222487507eb13cccdb9a66397092775d62b8c): Vim9: cannot compare with v:null\n* [8.2.4486](https://github.com/vim/vim/commit/f01af9c4e6f1438cd1112cfff42f3837028c7846): MS-Windows GUI: slow scrolling with maximized window