Inject anonymous inner classes of injected classes [DO NOT MERGE]

When injecting classes in LayoutLib (eg. CreateInfo), so that LayoutLib
can refer back to the changes, also inject the anonymous inner classes.
Without this, the injected classes are not loadable. Although, LayoutLib
itself doesn't load these classes, but some tests do.

Change-Id: Ib5f6b779ef4d79dec8d614d3dbb26eeac88a1064
(cherry picked from commit bfc9c3bc)