patch 8.2.4331: Vim9: no test for existing script variable in block Commit: https://github.com/vim/vim/commit/3a5988c025f8517ba382730dc54bb13df937edb4 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Feb 8 19:23:35 2022 +0000 patch 8.2.4331: Vim9: no test for existing script variable in block Problem: Vim9: no test for existing script variable in block. Solution: Add a test.

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