sem_ch4.adb (Analyze_Selected_Component): Do not generate an actual subtype if...

sem_ch4.adb (Analyze_Selected_Component): Do not generate an actual subtype if code is being pre-analyzed...

2005-03-29  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch4.adb (Analyze_Selected_Component): Do not generate an actual
	subtype if code is being pre-analyzed, to prevent un-expanded
	references to protected formals, among others.
	(Analyze_Explicit_Dereference): If the overloaded prefix includes some
	interpretation that can be a call, include the result of the call as a
	possible interpretation of the dereference.

	* sem_ch5.adb (Process_Bounds): Determine type of range by
	pre-analyzing a copy of the original range, and then analyze the range
	with the expected type.

	* sem_res.adb (Check_Parameterless_Call): For an explicit dereference
	with an overloaded prefix where not all interpretations yield an
	access to subprogram, do not rewrite node as a call.
	(Resolve_Explicit_Dereference): Recognize the previous case and rewrite
	the node as a call once the context identifies the interpretation of
	the prefix whose call yields the context type.
	(Valid_Conversion): For the case of a conversion between
	local access-to-subprogram types, check subtype conformance using
	Check_Subtype_Conformant instead of Subtype_Conformant, to have a more
	detailed error message.

From-SVN: r97184