private static void processExecutors(
    @NotNull PsiClassType qtype,
    @NotNull GrReferenceExpression ref,
    @NotNull List<ClosureDescriptor> descriptors
  ) {
    GroovyDslFileIndex.processExecutors(qtype, ref, (holder, descriptor) -> {
      holder.consumeClosureDescriptors(descriptor, descriptors::add);
      return true;
    });
  }
private static void processExecutors(
    @NotNull PsiClassType qtype,
    @NotNull GrReferenceExpression ref,
    @NotNull List<ClosureDescriptor> descriptors
  )