Cross Reference: /dalvik/dx/tests/136-null-constant-debug-info

`Name`	`Date`	`Size`
Up to higher level directory
`build`	22-Oct-2020	`651`
`expected.txt`	22-Oct-2020	`0`
`info.txt`	22-Oct-2020	`492`
`NullConstant.class`	22-Oct-2020	`394`
`NullConstant.java`	22-Oct-2020	`785`
`run`	22-Oct-2020	`644`