RFR: 7044282: (reflect) Class.forName and Array.newInstance are inconsistent regarding multidimensional arrays

[Joel Borggren-Franck]

Hi

Please review this spec update and test for getting array classes and
instances of more dimensions than the class file can express or the VM
can handle.

Array.newInstance have a test for arrays of more dimensions than 255,
this patch adds a test for Class.forName as well.

Also the javadoc for Array.newInstance are clarified.

Bug: https://bugs.openjdk.java.net/browse/JDK-7044282
Webrev: http://cr.openjdk.java.net/~jfranck/7044282/webrev.00/

cheers
/Joel