040000 tree cec866292fc4f886deba283b0171d588febb75ab	optional.object.assign
040000 tree aa59d2adad6712186139e9fef6041f95bc1157b4	optional.object.ctor
040000 tree 031ededf78af72bb235f08d14ca18d2173bc84b5	optional.object.observe
100644 blob 80896084335f4f956045e5aa9bd96dd42fb9675f	triviality.abi.pass.cpp