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

`Name`	`Date`	`Size`
Up to higher level directory
`extern_const.rs`	21-Aug-2018	`138`
`rs_core.rsh`	21-Aug-2018	`285`
`stderr.txt.expect`	21-Aug-2018	`0`
`stdout.txt.expect`	21-Aug-2018	`0`