[lworld] Test cases for value type consistency checks

[Ioi Lam]

I have modified Frederic's test cases for the value type consistency 
checks [1]. See

http://cr.openjdk.java.net/~iklam/valhalla/tests_for_value_types_consistency_checks.v01/

The test cases were originally driven by a shell script [2], and I 
rewrote them to run inside jtreg. The idea is to build 2 set of classes 
that have a different idea of whether "LPoint;" is a VT or not, and see 
how these classes interact.

I'll try to write more test cases, including ones that use Reflection 
and MethodHandles.

Thanks
- Ioi


[1] http://hg.openjdk.java.net/valhalla/valhalla/rev/a5573f4f6392
[2] 
http://cr.openjdk.java.net/~iklam/valhalla/tests_for_value_types_consistency_checks.v01/run.sh