Cross Reference: /external/clang/test/Modules/Inputs/macro-ambiguity

`Name`	`Date`	`Size`
Up to higher level directory
`a/`	06-Dec-2016
`b/`	06-Dec-2016
`c/`	06-Dec-2016
`d/`	06-Dec-2016
`e/`	06-Dec-2016
`module.modulemap`	06-Dec-2016	`684`