patch 8.2.0522: several errors are not tested for Commit: https://github.com/vim/vim/commit/ee4e0c1e9a81cb5d96e0060203a9033c2f28588e Author: Bram Moolenaar <Bram@vim.org> Date: Mon Apr 6 21:35:05 2020 +0200 patch 8.2.0522: several errors are not tested for Problem: Several errors are not tested for. Solution: Add tests. (Yegappan Lakshmanan, closes https://github.com/vim/vim/issues/5892)

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