Cross Reference: /external/clang/test/Modules/Inputs/explicit-build-prefer-self

`Name`	`Date`	`Size`
Up to higher level directory
`a.h`	22-Oct-2020	`20`
`b.h`	22-Oct-2020	`20`
`map`	22-Oct-2020	`130`
`x.h`	22-Oct-2020	`0`