040000 tree 65dfd61da9457353670de41ae2a13d68bfe7bf4e	protobuf_aware_treeshaker
040000 tree 08b312362ee582b4f18903ed6413c6afed84db64	type_flow
040000 tree 34695c5019f0ea9aa2023b343654fee1babfdb45	unreachable_code_elimination