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

`Name`	`Date`	`Size`
Up to higher level directory
`a/`	08-Oct-2015
`falsepos.h`	08-Oct-2015	`67`
`findme.h`	08-Oct-2015	`74`
`include1.h`	08-Oct-2015	`75`