8176265: Method overload resolution on a covariant base type doesn't work in 9
Summary: Some type mappings should not be recursive
Reviewed-by: vromero, jlahoda

8172530: JShell: TypeProjection .stream().map(...).collect(...) must be replaced with .map(...)
Reviewed-by: mcimadamore

8171981: JShell: Fails compilation: new Object().getClass().getSuperclass()
Reviewed-by: mcimadamore