ada: Cleanup preanalysis of static expressions (part 3)

ada: Cleanup preanalysis of static expressions (part 3)

Avoid reporting spurious errors.

gcc/ada/ChangeLog:

	* freeze.adb (Freeze_Expr_Types): Reverse patch; that is, restore
	calls to Preanalyze_Spec_Expression instead of Preanalyze_And_Resolve
	for the sake of consistency with Analyze_Expression_Function. Patch
	suggested by Eric Botcazou.
	* exp_put_image.adb (Image_Should_Call_Put_Image): Ensure that
	function Defining_Identifier is called with a proper node to
	avoid internal assertion failure.