040000 tree 05ff9c2ce248ff71e0fbdfd37851baab4de3f2bc	analyzer
040000 tree 3e1c64e25f380d9f41254247bbf23954b5a61e0f	closure
040000 tree 43c9deffb8df53611ffbf3b8d9008a695c56bef8	compiler
040000 tree 92b2db4a36e5cfbbaf74856985b582b516103a0f	js_ast