Konstantin Shcheglov
089f84f6cd
If the implemented interfaces don't declare an element, keep only a single copy of the element - from the superclass. In Dart Editor we use any element, but in in IDEA we show all of them, and we don't want to have duplicates. R=brianwilkerson@google.com BUG= Review URL: https://codereview.chromium.org//1273003005 .