message: Emit semantic highlighting for types
diff: @@ -185,6 +185,9 @@ void EmitSemanticHighlighting(QueryDatabase* db,
  is_type_member = var->def->declaring_type.has_value();
  break;
  }
  + case SymbolKind::Type: {
  + break;
  + }
  default:
  continue; // applies to for loop
  }
  