patch 8.2.0477: Vim9: error messages not tested Commit: https://github.com/vim/vim/commit/c58164c5cff9845f3bf7cfcd75ace43208829388 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Mar 29 18:40:30 2020 +0200 patch 8.2.0477: Vim9: error messages not tested Problem: Vim9: error messages not tested. Solution: Add more tests.

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