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[Ada] Renaming of intrinsic generic subprograms

This patch allows the renaming and subsequent instantiation  of generic
subprograms that are marked Intrinsic, such as the predefined units
Unchecked_Conversion and Unchecked_Deallocation.

The following must execute quietly:

   gnatmake -q -gnatws uncrename.adb

with Mumble;
with Dumble;
procedure UncRename is

   function Cast is new Mumble (Boolean, Integer);
   X : Boolean := True;
   Y : Integer := Cast (X);

   type A is access all Integer;

   procedure Free is new Dumble (Integer, A);

   Z : A := new Integer;

   Free (Z);
end UncRename;
with Ada.Unchecked_Conversion;
generic function Mumble renames Ada.Unchecked_Conversion;
with Ada.Unchecked_Deallocation;
generic procedure Dumble renames Ada.Unchecked_Deallocation;

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

2014-07-17  Ed Schonberg  <>

	* sem_ch8.adb (Analyze_Generic_Renaming): For generic subprograms,
	propagate intrinsic flag to renamed entity, to allow e.g. renaming
	of Unchecked_Conversion.
	* sem_ch3.adb (Analyze_Declarations): Do not analyze contracts
	if the declaration has errors.

Attachment: difs
Description: Text document

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