Cross Reference: /external/clang/test/Modules/Inputs/cxx-lookup

`Name`	`Date`	`Size`
Up to higher level directory
`a.h`	21-Aug-2018	`43`
`b.h`	21-Aug-2018	`58`
`c1.h`	21-Aug-2018	`36`
`c2.h`	21-Aug-2018	`44`
`module.modulemap`	21-Aug-2018	`305`
`na.h`	21-Aug-2018	`49`
`nb.h`	21-Aug-2018	`30`
`x.h`	21-Aug-2018	`79`
`y.h`	21-Aug-2018	`92`