[Ada] Couple of small preparatory adjustments

[Pierre-Marie de Rodat <derodat@adacore.com>]

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No functional changes.

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

gcc/ada/

	* gcc-interface/decl.cc (gnat_to_gnu_entity): Do not check the
	scope of anonymous access Itypes.
	* gcc-interface/trans.cc (Identifier_to_gnu): Do not translate
	the return type of a subprogram here.

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diff --git a/gcc/ada/gcc-interface/decl.cc b/gcc/ada/gcc-interface/decl.cc
--- a/gcc/ada/gcc-interface/decl.cc
+++ b/gcc/ada/gcc-interface/decl.cc
@@ -346,10 +346,12 @@ gnat_to_gnu_entity (Entity_Id gnat_entity, tree gnu_expr, bool definition)
       && !present_gnu_tree (gnat_entity)
       && In_Extended_Main_Code_Unit (gnat_entity))
     {
-      /* Ensure that we are in a subprogram mentioned in the Scope chain of
+      /* Unless it's for an anonymous access type, whose scope is irrelevant,
+	 ensure that we are in a subprogram mentioned in the Scope chain of
 	 this entity, our current scope is global, or we encountered a task
 	 or entry (where we can't currently accurately check scoping).  */
-      if (!current_function_decl
+      if (Ekind (gnat_entity) == E_Anonymous_Access_Type
+	  || !current_function_decl
 	  || DECL_ELABORATION_PROC_P (current_function_decl))
 	{
 	  process_type (gnat_entity);


diff --git a/gcc/ada/gcc-interface/trans.cc b/gcc/ada/gcc-interface/trans.cc
--- a/gcc/ada/gcc-interface/trans.cc
+++ b/gcc/ada/gcc-interface/trans.cc
@@ -1220,10 +1220,13 @@ Identifier_to_gnu (Node_Id gnat_node, tree *gnu_result_type_p)
 	gnat_result_type = Etype (gnat_node);
     }
 
-  /* Expand the type of this identifier first, in case it is an enumeral
-     literal, which only get made when the type is expanded.  There is no
-     order-of-elaboration issue here.  */
-  gnu_result_type = get_unpadded_type (gnat_result_type);
+  /* Expand the type of this identifier first if it is needed, in case it is an
+     enumeral literal, which only get made when the type is expanded.  There is
+     no order-of-elaboration issue here.  */
+  if (Is_Subprogram (gnat_entity))
+    gnu_result_type = NULL_TREE;
+  else
+    gnu_result_type = get_unpadded_type (gnat_result_type);
 
   /* If this is a non-imported elementary constant with an address clause,
      retrieve the value instead of a pointer to be dereferenced unless