patch 8.2.4602: Vim9: not enough test coverage for executing :def function Commit: https://github.com/vim/vim/commit/397a87ac1c9857eb0d5ec3add69e3b9ab6b0c77c Author: Bram Moolenaar <Bram@vim.org> Date: Sun Mar 20 21:14:15 2022 +0000 patch 8.2.4602: Vim9: not enough test coverage for executing :def function Problem: Vim9: not enough test coverage for executing :def function. Solution: Add a few more tests. Fix uncovered problem. Remove dead code.