feat(eval/method): partially port v8.1.1953

Adds method call support for all functions in the patch, but it cannot
be fully ported due to missing tests for:

- index(): requires Blobs from v8.1.0735.
           Note that index() was already added as a method in v8.1.1803;
           this patch only adds a test.

- iconv(): requires v8.1.1136 for test_termcodes.vim.

Nvim deprecated inputdialog(), so it no longer has an eval.txt entry.

Keep the test for hlexists() commented-out, just like previously. (Nvim
always defines the Number group, so it always returns 1 instead)

Cannot include both changes to test_syn_attr.vim as Nvim doesn't support
":hi term=..."; however, both test the same ->hlID() syntax anyway.

0 files changed, 0 insertions, 0 deletions