sphinx.domain.cpp: add missing field in CPPFunctionObject
sphinx.domain.cpp: add missing field in CPPFunctionObject

Change-Id: If5c307734e5c4563edd9c521176ce4fac200892d

aldebaran/libqi-java,aldebaran/libqi-java,vbarbaresi/libqi,aldebaran/libqi,aldebaran/libqi-java,aldebaran/libqi,aldebaran/libqi,bsautron/libqi