KtOperationReferenceExpression(57,59): '+='
  isImplicitReferenceToCompanion: false
  contextSensitiveResolutionStatus: NotAvailable
  lookupLocally: false
  KaSymbolResolutionSuccess:
    symbols = [
      kotlin/Int.plus(<dispatch receiver>: kotlin.Int, other: kotlin.Int): kotlin.Int,
      kotlin/collections/MutableList.set(<dispatch receiver>: kotlin.collections.MutableList<E>, index: kotlin.Int, element: E): E
    ]
