040000 tree 67994ab2a8f1a1e635cd9c6965fb5bcfd2bfc2bb	dart2js
040000 tree 23de50bd70f97c42e6d7d9d3d4c1f1f3175a4cf1	dart2js_extra
040000 tree 0c901e2532b753bfd7117fec06b7beb3acedc24c	dart2js_foreign
040000 tree cae994c00893b86fb27f022fae99768617e00fd7	dart2js_native