[Ada] Crash on imported object with deep initialization and No_Aborts

gcc/ada/

	* exp_util.adb (Remove_Init_Call): If a simple initialization
	call is present, and the next statement is an initialization
	block (that contains a call to a Deep_ Initialize routine),
	remove the block as well, and insert the first initialization
	call in it, in case it is needed for later relocation.

gcc/ada/exp_util.adb

@@ -11382,6 +11382,26 @@ package body Exp_Util is
       end if;
 
       if Present (Init_Call) then
+         --  If restrictions have forbidden Aborts, the initialization call
+         --  for objects that require deep initialization has not been wrapped
+         --  into the following block (see Exp_Ch3, Default_Initialize_Object)
+         --  so if present remove it as well, and include the IP call in it,
+         --  in the rare case the caller may need to simply displace the
+         --  initialization, as is done for a later address specification.
+
+         if Nkind (Next (Init_Call)) = N_Block_Statement
+           and then Is_Initialization_Block (Next (Init_Call))
+         then
+            declare
+               IP_Call : constant Node_Id := Init_Call;
+            begin
+               Init_Call := Next (IP_Call);
+               Remove (IP_Call);
+               Prepend (IP_Call,
+                 Statements (Handled_Statement_Sequence (Init_Call)));
+            end;
+         end if;
+
          Remove (Init_Call);
       end if;