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[Ada] Cleaning up of quantified expression analysis and expansion.

From: Arnaud Charlet <charlet at adacore dot com>
To: gcc-patches at gcc dot gnu dot org
Cc: Vincent Pucci <pucci at adacore dot com>
Date: Thu, 15 Mar 2012 04:39:36 -0400
Subject: [Ada] Cleaning up of quantified expression analysis and expansion.

This patch corrects the previous messy and erroneous analysis of quantified
expression.

Tested on x86_64-pc-linux-gnu, committed on trunk

2012-03-15  Vincent Pucci  <pucci@adacore.com>

	* exp_ch4.adb (Expand_N_Quantified_Expression): Expand the
	original quantified expression node.
	* sem_ch4.adb (Analyze_Quantified_Expression): Properly analyze
	the quantified expression and preserve the original non-analyzed
	quantified expression when an expansion is needed.
	* sem_ch5.adb (Analyze_Iteration_Scheme): Special treatment
	for quantified expressions.
	(Analyze_Iterator_Specification): Special treatment for quantified
	expressions.

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