Cross Reference: /prebuilts/ndk/r13/sources/cxx-stl/llvm-libc++/test/std/utilities/ratio/ratio.ratio

`Name`	`Date`	`Size`
Up to higher level directory
`ratio.pass.cpp`	06-Dec-2017	`1.4K`
`ratio1.fail.cpp`	06-Dec-2017	`520`
`ratio2.fail.cpp`	06-Dec-2017	`610`
`ratio3.fail.cpp`	06-Dec-2017	`610`