Drupal\Core\TypedData\TypedData::getPropertyPath() is slow

Triggering for 10.1 but was this waiting on anything else? Reading the comments and seemed to leave off on the test failures. Can wait to see what 10.1 does.

No D10 failures.

Committed 91e19e5 and pushed to 10.1.x. Thanks!

One small thing that should maybe be done in as a small follow-up patch (probably don't even need a separate issue for this): there really should be a comment there explaining why we're using the constructs we're using, and that it was specifically done for performance reasons. Otherwise we risk regressing it in the future, since we're not (AFAIK) doing regular profiling of core.

Adding tag for a followup per #50

Automatically closed - issue fixed for 2 weeks with no activity.

Followup made, 📌 Add comments explaining performance improvement in TypedData Fixed