re PR ada/5677 (Assert failure in nlists.adb:933)

2003-10-22  Arnaud Charlet  <charlet@act-europe.fr>

	* gnat_wrapper.adb: New file.

2003/10/22  Jerome Roussel  <roussel@act-europe.fr>

	* g-regpat.ads, g-regpat.adb (Match): new function, to know if a
	string match a pre compiled regular expression (the corresponding
	version of the function working on a raw regular expression)
	Fix typos in various comments
	Update copyright notice in spec

2003/10/21  Gary Dismukes  <dismukes@gnat.com>

	* exp_ch3.adb:
	(Component_Needs_Simple_Initialization): Return False when the type is a
	packed bit array. Revise spec comments to document this case.

	* exp_prag.adb:
	(Expand_Pragma_Import): Set any expression on the imported object to
	empty to avoid initializing imported objects (in particular this
	covers the case of zero-initialization of bit arrays).
	Update copyright notice.

2003/10/21  Ed Schonberg  <schonberg@gnat.com>

	* sem_ch12.adb:
	(Load_Parent_Of_Generic): If parent is compilation unit, stop search,
	a subunit is missing.
	(Instantiate_Subprogram_Body): If body of function is missing, set type
	of return expression explicitly in dummy body, to prevent cascaded
	errors when a subunit is missing.
	Fixes PR 5677.

	* sem_ch3.adb:
	(Access_Subprogram_Declaration): Verify that return type is valid.
	Fixes PR 8693.

	* sem_elab.adb:
	(Check_Elab_Calls): Do not apply elaboration checks if the main unit is
	generic.
	Fixes PR 12318.

	* sem_util.adb:
	(Corresponding_Discriminant): If the scope of the discriminant is a
	private type without discriminant, use its full view.
	Fixes PR 8247.

From-SVN: r72792