040000 tree 5dd7a06cc39e7056781c2cad3d21bea79d2e6f57	compile-interface-error
040000 tree a20b8b2142e858f3679f79030a16bd539cb11564	disambiguator
040000 tree 2fbce5bd174d04dbbffd91aa5e845beee7d3fda7	extern-opt
040000 tree 5fc260c46c41bf428f4db462e0dac0e3388e7932	simple