patch 8.1.0019: error when defining a Lambda with index of a function resultv8.1.0019

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.

1 files changed, 6 insertions, 0 deletions

diff --git a/src/testdir/test_lambda.vim b/src/testdir/test_lambda.vim
index 901d535e8..a95d591ce 100644
--- a/src/testdir/test_lambda.vim
+++ b/src/testdir/test_lambda.vim
@@ -284,3 +284,9 @@ func Test_named_function_closure()
   call test_garbagecollect_now()
   call assert_equal(14, s:Abar())
 endfunc
+
+func Test_lambda_with_index()
+  let List = {x -> [x]}
+  let Extract = {-> function(List, ['foobar'])()[0]}
+  call assert_equal('foobar', Extract())
+endfunc