040000 tree 07d8ea46841050a048a30d36c34225bd59c80de9	optimization
100644 blob 2f7e5fe7e2e94fdfd1e17765259374304641d032	tree_ir_builder.dart
100644 blob a688778f5acd77348debd3fe63ae24ee0637b72a	tree_ir_nodes.dart
100644 blob 38d9c6f1935e0bc3d426467cc6bf827fbed7bb9c	tree_ir_tracer.dart