Cross Reference: /external/clang/test/Modules/Inputs/using-decl-redecl

`Name`	`Date`	`Size`
Up to higher level directory
`a.h`	06-Dec-2016	`61`
`b.h`	06-Dec-2016	`74`
`c.h`	06-Dec-2016	`52`
`module.modulemap`	06-Dec-2016	`96`