Cross Reference: /frameworks/compile/slang/tests/F_unknown_function

`Name`	`Date`	`Size`
Up to higher level directory
`stderr.txt.expect`	22-Oct-2020	`89`
`stdout.txt.expect`	22-Oct-2020	`0`
`unknown_function.rs`	22-Oct-2020	`103`
`zzz.rs`	22-Oct-2020	`62`