MethodHandles: Track libcore change cc4ded.

Track increase in vtable size of java.lang.Class, and add additional
tests for the method that resulted in the increase as well as its
caller.

Bug: 30550796
Test: make test-art-host
Change-Id: I0ea6cbf8840d45b74f3a50e4c9df2af5397d41e3
2 files changed