RFR 8u20: Backport of 8038418 New tests development for type profiling and speculation

[Roland Westrelin]

> Please review backport of 8038418 into 8u20.
> The patch applied cleanly, so I didn't create a new webrev for it.
> 
> webrev: http://cr.openjdk.java.net/~iignatyev/ppunegov/8038418/webrev.06/
> 
> discussion: http://mail.openjdk.java.net/pipermail/hotspot-compiler-dev/2014-April/013962.html

Ok.

Roland.