[Ada] ACATS BDC1002 shall not error on arbitrary aspect

[Ada] ACATS BDC1002 shall not error on arbitrary aspect

gcc/ada/

	* aspects.adb, aspects.ads (Is_Aspect_Id): New function.
	* namet-sp.ads, namet-sp.adb (Aspect_Spell_Check,
	Attribute_Spell_Check): New Functions.
	* par-ch13.adb (Possible_Misspelled_Aspect): Removed.
	(With_Present): Use Aspect_Spell_Check, use Is_Aspect_Id.
	(Get_Aspect_Specifications): Use Aspect_Spell_Check,
	Is_Aspect_Id, Bad_Aspect.
	* par-sync.adb (Resync_Past_Malformed_Aspect): Use Is_Aspect_Id.
	* sem_ch13.adb (Check_One_Attr): Use Is_Aspect_Id.
	* sem_prag.adb (Process_Restrictions_Or_Restriction_Warnings):
	Introduce the Process_No_Specification_Of_Aspect, emit a warning
	instead of an error on unknown aspect, hint for typos.
	Introduce Process_No_Use_Of_Attribute to add spell check for
	attributes too.
	(Set_Error_Msg_To_Profile_Name): Use Is_Aspect_Id.
	* sem_util.adb (Bad_Attribute): Use Attribute_Spell_Check.
	(Bad_Aspect): New function.
	* sem_util.ads (Bad_Aspect): New function.