RFR(S): 8132717: Add tests checking that instances of j.l.Classes of a large size are allocated as Humongous

[Kirill Zhaldbybin]

Hi!

Could you please review the following test?

The test generates j.l.Classes with instances of different sizes, 
compiles,  loads and instantiates them and then checks that instances of 
size larger than half of G1 region are allocated as Humongous.

CR:
https://bugs.openjdk.java.net/browse/JDK-8132717

Webrev:
http://cr.openjdk.java.net/~kzhaldyb/webrevs/JDK-8132717/webrev.06/

Thank you.

Regards, Kirill