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

[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