Cross Reference: /external/clang/test/Preprocessor/Inputs/microsoft-header-search

`Name`	`Date`	`Size`
Up to higher level directory
`a/`	06-Dec-2017
`falsepos.h`	06-Dec-2017	`67`
`findme.h`	06-Dec-2017	`80`
`include1.h`	06-Dec-2017	`38`