Fix StackMap renaming in Java 8

With the move to Java 8 of layoutlib, we now need to make sure that the
method stackmaps are kept up to date or the class verification step will
fail. Up until now, we were ignoring them but this caused TestDelegates
to start failing.
This updates the code to make sure that when we modify a class name, we
also update the stackmap in the calls.

Change-Id: Iddbde7454f065ddb8da5bb1ab499ec0616f9b4fe