Go to definition on import symbols hangs

[olafurpg]

import scala.concurrent.Future

Jumping to "Future" starts a progress bar that never ends. Import symbols can be Symbol.Multi, since an import can refer to either a type or term symbol

16:14:56.672 INFO  s.m.l.s.InMemorySymbolIndex - Matching symbol _root_.scala.concurrent.Future.;_root_.scala.concurrent.Future#

We should split the symbol by ; and lookup each symbol individually and return alternatives for multiple responses (e.g., class + object positions).

[olafurpg]

Fixed in #332. Scalameta v4 no longer emits multi symbols, instead it emits two symbol occurrences for an ambiguous reference.