RFR: 8199728: Remove oopDesc::is_scavengable

[Stefan Karlsson]

Hi all,

Please review this trivial patch to replace oopDesc::is_scavengable() 
usages with Universe::heap()->is_scavengable(...).

http://cr.openjdk.java.net/~stefank/8199728/webrev.01/

This helps break an include dependency between oop.inline.hpp and 
collectedHeap.inline.hpp. I'll remove the collectedHeap.inline.hpp 
include in a separate RFE, since doing that requires update to many 
header files that transitively included collectedHeap.inline.hpp and its 
include files.

Thanks,
StefanK