040000 tree 07d8ea46841050a048a30d36c34225bd59c80de9	optimization
100644 blob 3a017d9554500baed75930f21cb5918d22ec2264	tree_ir_builder.dart
100644 blob ab74fa17bcd62ff57d3be0424d17905557dcfbfa	tree_ir_nodes.dart
100644 blob 38d9c6f1935e0bc3d426467cc6bf827fbed7bb9c	tree_ir_tracer.dart