Cross Reference: /external/libcxx/test/std/algorithms/alg.modifying.operations/alg.random.sample

`Name`	`Date`	`Size`
Up to higher level directory
`sample.fail.cpp`	21-Aug-2018	`1.5K`
`sample.pass.cpp`	21-Aug-2018	`6.3K`
`sample.stable.pass.cpp`	21-Aug-2018	`1.7K`