fix [class]: Added return statements to class operator overload
fix [class]: Added return statements to class operator overload

Operator overloading statements now support the RETURN signal for
a return value.

Signed-off-by: Vihan B <1a73af9e7ae00182733b2292511b814be66f065f@vihan.org>

cheddar-lang/Ches,cheddar-lang/Ches