patch 8.1.0019: error when defining a Lambda with index of a function result commit https://github.com/vim/vim/commit/b4518563c73460150344a57879bf5b22cb8b1c77 Author: Bram Moolenaar <Bram@vim.org> Date: Tue May 22 18:31:35 2018 +0200 patch 8.1.0019: error when defining a Lambda with index of a function result Problem: Error when defining a Lambda with index of a function result. Solution: When not evaluating an expression and skipping a function call, set the return value to VAR_UNKNOWN.

" Vim script used in test_eval.in.  Needed for script-local function.

func! s:Testje()
  return "foo"
endfunc
let Bar = function('s:Testje')
$put ='s:Testje exists: ' . exists('s:Testje')
$put ='func s:Testje exists: ' . exists('*s:Testje')
$put ='Bar exists: ' . exists('Bar')
$put ='func Bar exists: ' . exists('*Bar')