2009-04-17 Ed Schonberg <schonberg@adacore.com>

2009-04-17  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch3.adb (Access_Subprogram_Definition): Additional checks on
	illegal uses of incomplete types in formal parts and return types.

	* sem_ch6.adb (Process_Formals): Taft-amendment types are legal in
	access to subprograms.

	* sem_ch7.adb (Uninstall_Declarations): diagnose attempts to use
	Taft-amendment types as the return type of an access_to_function type.

	* freeze.adb (Freeze_Entity): Remove tests on formals of an incomplete
	type for access_to_subprograms. The check is performed on package exit.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@146229 138bc75d-0d04-0410-961f-82ee72b054a4