Don't filter out references to constructors.
Even if we assign to something that wants a different type, we might
chain some property access on it later on, so it is not nice to don't
suggest anything at all. Instead, we should give higher relevance to
compatible types, but keep all the rest with default relevance, as we
did already for everything other than instance creations.
R=brianwilkerson@google.com
Bug: https://github.com/flutter/flutter-intellij/issues/1107
Change-Id: I86c3c5dded4ad4cbbf28a60c0ae2847f07a3373b
Reviewed-on: https://dart-review.googlesource.com/52863
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Commit-Queue: Konstantin Shcheglov <scheglov@google.com>
Konstantin Shcheglov
da49615c2c