tree ffb21526f93458447c688529210c56112f5155f0
parent 16640fd8044798cc47337f46e8288979bea3dde8
author pq <pquitslund@google.com> 1450415262 -0800
committer pq <pquitslund@google.com> 1450415262 -0800

Cache element docs (and add to completions) [#23694].

This does away with the expensive call to `computeDocumentationComment` in favor of cached comments.  Notably this makes adding doc content to code completion proposals performant (and so is done here).  It should also make `dartdoc` *much* faster for doc generation since there are no more trips to disk to fetch comments  for elements (still needed for source though).

For more on the desire for docs in completions see here: https://github.com/dart-lang/sdk/issues/23694

R=brianwilkerson@google.com, scheglov@google.com

Review URL: https://codereview.chromium.org/1534043002 .