Update MethodHandles.Lookup.unreflectSpecial test

Updates test to match change in ART behavior and method documentation.

Bug: 77729852
Test: cts-tradefd run cts -m CtsLibcoreTestCases -t libcore.java.lang.invoke.MethodHandlesTest#testUnreflectSpecial_superCalls

(cherry picked from commit 23d87b48)

Change-Id: I3cfc338ff21f0760c924d07e386e9beabf30a5a8
Merged-In: I0e33a09ff61ccc76a64ff4ba5cf720065923a738