RFR: Cherry-pick JDK-8202079 ([s390]: Build failure w/o precompiled headers)

[Roman Kennke]

Am 24.04.2018 um 11:41 schrieb Aleksey Shipilev:
> This one:
>  http://hg.openjdk.java.net/jdk/jdk/rev/fa6f8bce6490
> 
> This would come through the next jdk/jdk merge, but it would be nice to have it right now for our
> builds to be happy.
> 
> Testing: s390x non-PCH build
> 
> Thanks,
> -Aleksey
> 

Ok. Thanks!