[Ada] Replace low-level detection of subprograms with high-level wrapper

gcc/ada/

	* exp_aggr.adb, sem_cat.adb, sem_ch10.adb, sem_ch12.adb,
	sem_elim.adb, sem_util.adb: Replace uses of Subprogram_Kind with
	Is_Subprogram.

gcc/ada/exp_aggr.adb

@@ -9248,7 +9248,7 @@ package body Exp_Aggr is
 
             when N_Object_Declaration =>
                return not Constant_Present (C)
-                 and then Ekind (Current_Scope) in Subprogram_Kind;
+                 and then Is_Subprogram (Current_Scope);
 
             --  False for all other contexts
 

gcc/ada/sem_cat.adb

@@ -807,7 +807,7 @@ package body Sem_Cat is
       end if;
 
       if not Is_Remote_Call_Interface (E) then
-         if Ekind (E) in Subprogram_Kind then
+         if Is_Subprogram (E) then
             Declaration := Unit_Declaration_Node (E);
 
             if Nkind (Declaration) in

gcc/ada/sem_ch10.adb

@@ -5271,7 +5271,7 @@ package body Sem_Ch10 is
             end if;
 
             if Is_Generic_Instance (Uname)
-              and then Ekind (Uname) in Subprogram_Kind
+              and then Is_Subprogram (Uname)
             then
                --  Set flag as well on the visible entity that denotes the
                --  instance, which renames the current one.

gcc/ada/sem_ch12.adb

@@ -5298,7 +5298,7 @@ package body Sem_Ch12 is
 
          Scop := Scope (E);
          while Scop /= Standard_Standard loop
-            if Ekind (Scop) in Subprogram_Kind and then Is_Inlined (Scop) then
+            if Is_Subprogram (Scop) and then Is_Inlined (Scop) then
                return True;
             end if;
 

gcc/ada/sem_elim.adb

@@ -247,7 +247,7 @@ package body Sem_Elim is
 
       --  Elimination of objects and types is not implemented yet
 
-      elsif Ekind (E) not in Subprogram_Kind then
+      elsif not Is_Subprogram (E) then
          return;
       end if;
 

gcc/ada/sem_util.adb

@@ -29476,7 +29476,7 @@ package body Sem_Util is
                   --  Since we are only interested in the formal case, avoid
                   --  the anonymous access result type.
 
-                  if Ekind (Def_Ent) in Subprogram_Kind
+                  if Is_Subprogram (Def_Ent)
                     and then not (Ekind (Def_Ent) = E_Function
                                    and then Etype (Def_Ent) = Typ)
                   then