[PATCH] 8037925: CMM Testing: an allocated humongous object at the end of the heap should not prevents shrinking the heap

[Andrey Zakharov]

Test to check, that if we allocate h1, h2 and h3 humongous objects and 
free h1 and h2, after GC G1 shrinks the heap.
webrev: http://cr.openjdk.java.net/~jwilhelm/8037925/webrev/
bug: https://bugs.openjdk.java.net/browse/JDK-8037925

This test used testlibrary MemoryUsagePrinter from
http://cr.openjdk.java.net/~jwilhelm/8037924/webrev/

Thanks.