Track the attempted method when raising UnsupportedVersion

This helps in circumstances where the only stacktrace visible
is on the target side (e.g. due to cast or fanout operations)
and without the method information is difficult to root cause
what is going on.

Change-Id: I070ecda4d56186fcda8e8bfc49bf723928998393
Closes-bug: #1340277
Merge "Track the attempted method when raising UnsupportedVersion"