(Enhanced for Loop)

- fix for Iterator as default-annotated BinaryTypeBinding

Change-Id: I2c795ad442ebf919c2185ca3e7f369e6ae8f7ae4
Reviewed-on: https://git.eclipse.org/r/c/jdt/eclipse.jdt.core/+/190917
Tested-by: JDT Bot <jdt-bot@eclipse.org>
Reviewed-by: Stephan Herrmann <stephan.herrmann@berlin.de>