[method] `textDocument/inlayHint`

[dannypsnl]

The current implementation will show "defined in file-xxx" for every definition. This is not quite helpful of course, to get more useful functionality, check-syntax should be able to collect the form of procedure like (hash-ref hash key).

Then collector can collect this information and provide hints like (hash-ref hash (make-hash) key 'a), notice that hash and key previous shows are inlay hints.

Below is the current situation:

[dannypsnl]

@jeapostrophe I let inlay-hint return an empty hint list for now since collecting metadata for structure or procedure from syncheck-annotations<%> is hard due to no direct supporting, but the method implementation is workable on the other hand, so I guess you can merge this for now and waiting for the future we know more about how to collect data and improve the editing experience.

[jeapostrophe]

Excellent!