RFR (XS) 8230118: 32-bit build failures after JDK-8227054

[Aleksey Shipilev]

Bug:
  https://bugs.openjdk.java.net/browse/JDK-8230118

I believe we should just use pointer_delta:
  http://cr.openjdk.java.net/~shade/8230118/webrev.01/

Testing: build, tier1 {x86_32, x86_64}

-- 
Thanks,
-Aleksey