Cross Reference: /external/r8/src/test/examples/shaking15

`Name`	`Date`	`Size`
Up to higher level directory
`dictionary`	06-Dec-2017	`166`
`keep-rules.txt`	06-Dec-2017	`601`
`Shaking.java`	06-Dec-2017	`369`
`sub/`	06-Dec-2017
`Subclass.java`	06-Dec-2017	`549`
`Superclass.java`	06-Dec-2017	`445`