[8u] RFR: fix of next pc calculation in handle_unsafe_access()

[Edward Nevill]

Hi Fedor,

Looks good, thanks,

Ed.

On Fri, 2016-04-29 at 12:16 +0000, Fedor Burdun wrote:
> Please review fix of crash occurring in regression test
> (java/nio/MappedByteBuffer/Truncate.java).
> 
> The problem is caused by skipping extra instructions in
> handle_unsafe_access() function after catching SIGBUS signal.
> Meanwhile this routine should skip only one instruction (as we can see
> on other platforms)
> 
>