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[Ada] Addition of missing frontend assertion

From: Arnaud Charlet <charlet at adacore dot com>
To: gcc-patches at gcc dot gnu dot org
Cc: Javier Miranda <miranda at adacore dot com>
Date: Thu, 23 Jul 2009 11:21:51 +0200
Subject: [Ada] Addition of missing frontend assertion

This patch does not add any new functionality to the compiler.
It ensures that attribute Component_Type is only read in entities
associated with arrays and strings.

No test required.

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

2009-07-23  Javier Miranda  <miranda@adacore.com>

	* einfo.adb (Component_Type): Add missing assertion.
	* sem_res.adb (Resolve_Call): Ensure proper kind of entity before
	reading attribute Component_Size.
	* exp_ch4.adb (Is_Safe_In_Place_Array_Op): Ensure proper kind of entity
	before reading attributes Component_Size and Component_Type.
	* exp_ch3.adb (Build_Initialization_Call): Ensure proper kind of entity
	before reading attribute Component_Type.

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