Inject anonymous inner classes of injected classes

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