feat(lsp): semantic token range improvements #37451

* cache all tokens from various range requests for a given document
  version
  - all new token highlights are merged with previous highlights to
    maintain order and the "marked" property
  - this allows the tokens to stop flickering once they've loaded once
    per document version
* abandon the processing coroutine if the request_id has changed instead
  of relying only on the document version
  - this will improve efficiency if a new range request is made while a
    previous one was processing its result
* apply new highlights from processing coroutine directly to the current
  result when the version hasn't changed
  - this allows new highlights to be immediately drawable once they've
    processed instead of waiting for the whole response to be processed
    at once
* rpc layer was changed to provide the request ID back in success
  callbacks, which is then provided as a request_id field on the handler
  context to lsp handlers

0 files changed, 0 insertions, 0 deletions