wrap-java: malformed where clause for static methods on nested types of generic interfaces

[ktoso]

When wrap-java translates a static method whose declaring type is a nested type of a generic interface (e.g. java.util.Map.Entry.copyOf, or any static returning Map.Entry<K, V> from Map), the emitted where ObjectType == … clause omits the outer type's generic arguments. The result fails to compile.

This affects generating java.util.Map