Feature Request: Language server to be recursive regardless of trailing slashes

Nobody has claimed this yet.

When executing the language server binary with `--check [path]` flag, it will only diagnose the immediate child elements of the given path if it contains a trailing slash
~~Currently, if I want to diagnose a project different subdirectories via the CLI, e.g. the lua-language-server itself, I'll need a script that calls the binary for every subdirectory of the project to get a full report - and as a result I get a check.json for every subdirectory with diagnosed problems.~~ Edit: Just have to make sure the path format is correct.

~~So for example, I'd like to call something like
`.\language-server\bin\lua-language-server.exe --check .\language-server\ --recursive`
and have all the source files in subdirectories checked as well.
That way it might also be possible to have a single check.json as a report as well.~~

The correct enhancement to propose is to handle things like a trailing slash in the path the same

Start at the language server's `--check [path]` entry point and trace how paths with trailing slashes are handled. Compare recursive diagnosis for equivalent paths, then verify that trailing-slash and non-trailing-slash inputs produce the same complete report.

Written by the indexing model from the issue text.