Function make_chunk_group 

pub async fn make_chunk_group(
    chunk_groups: SmallVec<[ChunkGroup; 1]>,
    module_graph: ResolvedVc<ModuleGraph>,
    chunking_context: ResolvedVc<Box<dyn ChunkingContext>>,
    availability_info: AvailabilityInfo,
) -> Result<MakeChunkGroupResult>

Creates one chunk group from chunk_groups, chunking all of them together.

See chunk_group_content for how several groups are combined.