[foreign] RFR 8219004: Rename Array::type to Array::elementType

[Maurizio Cimadamore]

Hi,
this simpe patch changes the name from Array::type to Array::elementType.

I found the name confusing on many instances and the API should IMHO be 
clearer on the fact that the method return the layout type associated 
with the array element.


Webrev:
http://cr.openjdk.java.net/~mcimadamore/panama/8219004/

Maurizio