In my company's codebase, code navigation is intolerably slow, to the point where most devs just use global find instead of the jump-to-def/find-all-references functionality.

Is there some reason why Dart-Code doesn't subscribe to analysis.navigation events from the language server? FWIW Dart for Webstorm does this and uses the results for code navigation, making it instant.

I have a hacked up version of Dart-Code locally that does this and it vastly improves the experience for me. Happy to send a PR if anyone's interested (though it's not very hard to implement).