2004-04-26 Orjan Friberg <orjanf@axis.com>

2004-04-26  Orjan Friberg <orjanf@axis.com>

	* frame.c: Include "observer.h".
	(frame_observer_target_changed): New function.
	(_initialize_frame): Attach target_changed observer.
	* regcache.c: Include "observer.h".
	(regcache_observer_target_changed): New function.
	(_initialize_regcache): Attach target_changed observer.
	* valops.c: Include "observer.h".
	(value_assign): Notify target_changed event when modifying register.
	* Makefile.in (frame.o, regcache.o, valops.o): Add $(observer_h).