RFR (S): 8219856: Spell out G1CollectorPolicy::is_hetero_heap

[Thomas Schatzl]

Hi all,

  can I have reviews for this small change in naming of the method
G1CollectorPolicy::is_hetero_heap() which includes the (to me) really
uncommon abbreviation for heterogeneous as hetero?

Every time I read this I ask myselves what this means in context of G1.

CR:
https://bugs.openjdk.java.net/browse/JDK-8219856
Webrev:
http://cr.openjdk.java.net/~tschatzl/8219856/webrev/
Testing:
local compilation

Thanks,
  Thomas