RFR(XS): 8155735: use strings instead of Symbol* in JVMCI exception stubs

[Christian Thalinger]

> On May 3, 2016, at 12:02 AM, Roland Schatz <roland.schatz at oracle.com> wrote:
> 
> On 05/02/2016 06:53 PM, Christian Thalinger wrote:
>>> [...]
>>> 
>>> I've also included an exception check after the symbol lookup, just to be sure.
>> Use CHECK instead of HAS_PENDING_EXCEPTION.  Otherwise this looks good.
> Done:
> http://cr.openjdk.java.net/~rschatz/JDK-8155735/webrev.02/

Thanks.  I will integrate this.

> 
> 
> - Roland