RFR 8140267: assert(is_native_ptr || alias_type->adr_type() == TypeOopPtr::BOTTOM || alias_type->field() != __null || alias_type->element() != __null) failed: field, array element or unknown

[Christian Thalinger]

Looks good.

> On Oct 21, 2015, at 11:29 AM, Dean Long <dean.long at oracle.com> wrote:
> 
> https://bugs.openjdk.java.net/browse/JDK-8140267
> http://cr.openjdk.java.net/~dlong/8140267/webrev/
> 
> 8136473 caused lots of failures in nightly testing, so we need to back it out.
> 
> dl