Issue #2665992 by alexpott, klausi, heykarthikwithu, xjm, tstoeckler: @file is not required for classes, interfaces and traits

Issue #2408371 by dawehner, Fabianx, alexpott, bforchhammer: Proxies of module interfaces don't work

Issue #1973618 by dawehner, donquixote, plach, Mile23: DIC: Lazy instantiation of service dependencies (ProxyManager for "proxy services")