vim: Import v8.2.2305

* 8.2.2305: Vim9: "++var" and "--var" are silently accepted
* 8.2.2304: Vim9: no test for unletting an imported variable
* 8.2.2303: Vim9: backtick expansion doesn't work for :foldopen
* 8.2.2302: Vim9: using an option value may use uninitialized memory

gitlog.txt

@@ -1 +1 @@
-* [8.2.2301](https://github.com/vim/vim/commit/752fc692ace51459cb407ec117c147b3bbebc071): Vim9: cannot unlet a dict or list item\n* [8.2.2300](https://github.com/vim/vim/commit/d62d87d8f3f337a25b7da72abf55fc8a4bb6100c): Vim9: wrong order on type stack when using dict\n* [8.2.2299](https://github.com/vim/vim/commit/d1510ee9469f623c872a18b6e3c3666c0fb23c58): Vim9: invalid memory access making error message flaky\n* [8.2.2298](https://github.com/vim/vim/commit/cef1270dec61efb3544f26ceea0f6a4f57e0198a): Vim9: comment right after "(" of function not recognized\n* [8.2.2297](https://github.com/vim/vim/commit/0ea04408653be843e37d03ce574f5d2eae682339): Vim9: cannot set 'number' to a boolean value\n* [8.2.2296](https://github.com/vim/vim/commit/014f698cb68ff80c49f9f5d3dbe78127df281885): cannot use CTRL-N and CTRL-P in a popup menu\n* [8.2.2295](https://github.com/vim/vim/commit/d93a7fc1a98a58f8101ee780d4735079ad99ae35): incsearch does not detect empty pattern properly\n* [8.2.2294](https://github.com/vim/vim/commit/82c38fe508155c11a904e6111b5bfb6adde3fb9a): VMS: a few remaining problems
+* [8.2.2305](https://github.com/vim/vim/commit/b23279d7a2d28de5df942924b77cf23672fc684f): Vim9: "++var" and "--var" are silently accepted\n* [8.2.2304](https://github.com/vim/vim/commit/0acbf5ae6632b36c2d2f93406478270ef21f528b): Vim9: no test for unletting an imported variable\n* [8.2.2303](https://github.com/vim/vim/commit/ecac591cce23919059a5d93ed2e94541b1be99b5): Vim9: backtick expansion doesn't work for :foldopen\n* [8.2.2302](https://github.com/vim/vim/commit/a79925a0a8f00577782090859eb0ef69e220d4aa): Vim9: using an option value may use uninitialized memory