Cross Reference: /external/icu/icu4c/source/test/hdrtst

`Name`	`Date`	`Size`
Up to higher level directory
`cxxfiles.txt`	22-Oct-2020	`2K`
`dfiles.txt`	22-Oct-2020	`264`
`Makefile.in`	22-Oct-2020	`5.8K`
`pfiles.txt`	22-Oct-2020	`282`
`testinternalheaders.sh`	22-Oct-2020	`3.6K`