vscode snippet loader ignores paths after invalid path

[bootleq]

Hi, the loader with specific paths might behave unexpectedly, where first invalid path make further items ignored.
For example:

require('luasnip.loaders.from_vscode').load({
  paths = {
    '/NOT/EXIST/PATH',  -- this directory doesn't exist
    '/path/to/friendly-snippets',
  },
})

should still find friendly-snippets path, while it doesn't, all paths were ignored and not loaded.

Can also reproduce in my forked test, thanks.

[L3MON4D3]

Thank you for opening issue+solution, very nice!!
I think this is an okay solution, but I'd rather have the list passed to deduplicate not have missing items (such that it is continuous and can be iterated using ipairs).
Would you look into making that change instead?

[bootleq]

Thanks for suggestion, I've changed the implementation.
Also found other loaders (lua, snipmate) have the same problem, so handled them, too.

If the changes look ok, I can to do a rebase if needed.

[L3MON4D3]

Looks perfect 👍
Squashing into one commit seems appropriate, would be great if you could do that

[bootleq]

I've finished the rebase.
Please let me know if need change, thanks a lot.

[L3MON4D3]

No more changes, this is great :D
Thank you very much for the fix!!