patch 8.2.1201: Vim9: crash when passing number as dict key
Problem: Vim9: crash when passing number as dict key.
Solution: Check key type to be string. (closes #6449)
diff --git a/src/testdir/test_vim9_func.vim b/src/testdir/test_vim9_func.vim
index 53206df..99b2a11 100644
--- a/src/testdir/test_vim9_func.vim
+++ b/src/testdir/test_vim9_func.vim
@@ -954,6 +954,14 @@
assert_equal(6, res)
enddef
+def Wrong_dict_key_type(items: list<number>): list<number>
+ return filter(items, {_, val -> get({val: 1}, 'x')})
+enddef
+
+def Test_wrong_dict_key_type()
+ assert_fails('Wrong_dict_key_type([1, 2, 3])', 'E1029:')
+enddef
+
def Line_continuation_in_def(dir: string = ''): string
let path: string = empty(dir)
\ ? 'empty'