JDK 10 RFR of JDK-8173595: Update TestSourceVersion once VERSION_MAJOR is updated to 10

[joe darcy]

On 2/3/2017 3:35 AM, David Holmes wrote:
> Looks good.
>
> I think there will be a few things like this that need updating. We 
> already found one internal hotspot test that used version 10 as an 
> invalid version :)

Yep; I'll be sending out reviews for a few similar issues over in 
core-libs and security libs. A bit short-sighted for some new tests in 
libs written in 9 to use 10 as an invalid version ;-)

-Joe