vim: Import v8.2.1704

* 8.2.1704: Vim9: crash in for loop when autoload script has an error
* 8.2.1703: ":highlight clear" does not restore default link
* 8.2.1702: crash when using undo after deleting folded lines

gitlog.txt

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-* [8.2.1701](https://github.com/vim/vim/commit/08e51f446bd4bf1a0342c471163b1ed083e9eedb): Vim9: sort("i") does not work\n* [8.2.1700](https://github.com/vim/vim/commit/9939f57b7f1c17a0142ebfe4f9e0b634158593e1): Vim9: try/catch causes wrong value to be returned\n* [8.2.1699](https://github.com/vim/vim/commit/916911f598718bc76bc6b87ed703d2805fa49c53): build failure due to missing error message\n* [8.2.1698](https://github.com/vim/vim/commit/a187c43cfe8863d48b2159d695fedcb71f8525c1): cannot lock a variable in legacy Vim script like in Vim9\n* [8.2.1697](https://github.com/vim/vim/commit/7707228aace9aff16434edf5377a354c6ad07316): inconsistent capitalization of error messages\n* [8.2.1696](https://github.com/vim/vim/commit/2c12f890551bbdf5605472a4d711d48a273685d7): unused (duplicate) macros\n* [8.2.1695](https://github.com/vim/vim/commit/2f8cbc4b225ba707c3926070a3f133eb0473aed2): Vim9: crash when using varargs type "any"\n* [8.2.1694](https://github.com/vim/vim/commit/573545a55afb5d42614cdb69f356abb32409270b): compiler warning for loss if data\n* [8.2.1693](https://github.com/vim/vim/commit/05eb5b9cae123b138bbd23cc77e50657ece6b4ad): "hi def" does not work for cleared highlight\n* [8.2.1692](https://github.com/vim/vim/commit/fb489af2ec1b181d212a8aa8151d7784b260d01b): build fails because TTFLAG\_STATIC is missing\n* [8.2.1691](https://github.com/vim/vim/commit/5e654230777ad21363a929dce3cfe0387da031a7): Vim9: list\<any> is not accepted where list\<number> is expected
+* [8.2.1704](https://github.com/vim/vim/commit/77e5dcc36a82da040072d74e3ced410d15c42757): Vim9: crash in for loop when autoload script has an error\n* [8.2.1703](https://github.com/vim/vim/commit/213da551dec465e193619684b260bf9d5a8d6afc): ":highlight clear" does not restore default link\n* [8.2.1702](https://github.com/vim/vim/commit/da697645d5917eb3d4168c06c3442bef9fb746bf): crash when using undo after deleting folded lines