vim-patch:8.2.1631: test_fails() does not check the context of the line number

Problem:    test_fails() does not check the context of the line number.
Solution:   Use another argument to specify the context of the line number.

9bd5d879c2

Co-authored-by: Bram Moolenaar <Bram@vim.org>

src/nvim/eval.lua

@@ -38,7 +38,7 @@ return {
     assert_equal={args={2, 3}, base=2},
     assert_equalfile={args={2, 3}, base=1},
     assert_exception={args={1, 2}},
-    assert_fails={args={1, 4}, base=1},
+    assert_fails={args={1, 5}, base=1},
     assert_false={args={1, 2}, base=1},
     assert_inrange={args={3, 4}, base=3},
     assert_match={args={2, 3}, base=2},