531f1d1e5b
We want to be able to index not just CompilationUnitElement(s), but also for example results of Angular resolution, which while are based on resolved CompilationUnit(s), are not ready together with it, so should live in separate split index nodes. R=brianwilkerson@google.com BUG= Review URL: https://codereview.chromium.org//1359023002 .