patch 8.2.1286: Vim9: No error when using a type to a window variable Commit: https://github.com/vim/vim/commit/43e969d3f98766824c18d20b84f2fab00feef683 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Jul 23 21:14:43 2020 +0200 patch 8.2.1286: Vim9: No error when using a type to a window variable Problem: Vim9: No error when using a type to a window variable Solution: Recognize the syntax and give an error. (closes https://github.com/vim/vim/issues/6521)