patch 8.2.0339: Vim9: function return type may depend on arguments Commit: https://github.com/vim/vim/commit/fbdd08ed9b1798885915c7f27c94786906d258e4 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Mar 1 14:04:46 2020 +0100 patch 8.2.0339: Vim9: function return type may depend on arguments Problem: Vim9: function return type may depend on arguments. Solution: Instead of a fixed return type use a function to figure out the return type.