RFR(XS): JDK-8068655 frame::safe_for_sender() computes incorrect sender_sp value for interpreted frames

[Frederic Parain]

Greetings,

Please review this small fix in the frame verification code.
The bug report includes a detailed description of the issue.

CR:
https://bugs.openjdk.java.net/browse/JDK-8068655

Webrev:
http://cr.openjdk.java.net/~fparain/8068655/webrev.00/

Thanks,

Fred

-- 
Frederic Parain - Oracle
Grenoble Engineering Center - France
Phone: +33 4 76 18 81 17
Email: Frederic.Parain at oracle.com