737     std::random_device RandGen;  in TEST()  local
766       bool ShouldHaveErrors = ShouldHaveErrorsDist(RandGen);  in TEST()
775       unsigned FileIndex = FileIndexDist(RandGen);  in TEST()
780       unsigned FileIndex = FileIndexDist(RandGen);  in TEST()
785       unsigned FileIndex = FileIndexDist(RandGen);  in TEST()
795       unsigned FileIndex = FileIndexDist(RandGen);  in TEST()
801       Pos.line = LineDist(RandGen);  in TEST()
802       Pos.character = ColumnDist(RandGen);  in TEST()
814       unsigned FileIndex = FileIndexDist(RandGen);  in TEST()
820       Pos.line = LineDist(RandGen);  in TEST()
821       Pos.character = ColumnDist(RandGen);  in TEST()
839         unsigned RequestIndex = AsyncRequestIndexDist(RandGen);  in TEST()
843         auto RequestIndex = BlockingRequestIndexDist(RandGen);  in TEST()