patch 8.2.2770: Vim9: type of loop variable is not used Commit: https://github.com/vim/vim/commit/fe090eb58fad1aaf83267d0b4ace9f024a5ba2bc Author: Bram Moolenaar <Bram@vim.org> Date: Thu Apr 15 21:48:32 2021 +0200 patch 8.2.2770: Vim9: type of loop variable is not used Problem: Vim9: type of loop variable is not used. Solution: Parse and check the variable type. (closes https://github.com/vim/vim/issues/8107)

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