patch 8.2.3335: Vim9: not enough tests run with Vim9 Commit: https://github.com/vim/vim/commit/ef98257593a0abf1300d0f70358dc45a70a62580 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Aug 12 19:27:57 2021 +0200 patch 8.2.3335: Vim9: not enough tests run with Vim9 Problem: Vim9: not enough tests run with Vim9. Solution: Run a few more tests in Vim9 script and :def function. Fix that items(), keys() and values9) return zero for a NULL dict. Make join() return an empty string for a NULL list. Make sort() return an empty list for a NULL list.