private @NotNull ObjectIterable<Int2ObjectMap.Entry<List<GutterMark>>> processGutterRenderers() {
    if (myLineToGutterRenderers == null || myLineToGutterRenderersCacheForLogicalLines != logicalLinesMatchVisualOnes()) {
      myLineToGutterRenderers = buildGutterRenderersCache();
    }
    return Int2ObjectMaps.fastIterable(myLineToGutterRenderers);
  }
private @NotNull ObjectIterable<Int2ObjectMap.Entry<List<GutterMark>>> processGutterRenderers()