[COMMITTED] ada: Only build access-to-subprogram wrappers when expander is active

["Marc Poulhiès" <poulhies@adacore.com>]

From: Piotr Trojanek <trojanek@adacore.com>

For access-to-subprogram types with Pre/Post aspects we create a wrapper
routine that evaluates these aspects. Spec of this wrapper was created
always, while its body was only created when expansion was enabled.

Now we only create these wrappers when expansion is enabled. In
particular, we don't create them in GNATprove mode; instead, GNATprove
picks the Pre/Post expressions directly from the aspects.

gcc/ada/

	* exp_ch3.adb
	(Build_Access_Subprogram_Wrapper_Body): Build wrapper body if requested
	by routine that builds wrapper spec.
	* sem_ch3.adb
	(Analyze_Full_Type_Declaration): Only build wrapper when expander is
	active.
	(Build_Access_Subprogram_Wrapper):
	Remove special-case for GNATprove.

Tested on x86_64-pc-linux-gnu, committed on master.

---
 gcc/ada/exp_ch3.adb |  4 ----
 gcc/ada/sem_ch3.adb | 12 ++----------
 2 files changed, 2 insertions(+), 14 deletions(-)

diff --git a/gcc/ada/exp_ch3.adb b/gcc/ada/exp_ch3.adb
index 5f651bacafb..f8c99470dd7 100644
--- a/gcc/ada/exp_ch3.adb
+++ b/gcc/ada/exp_ch3.adb
@@ -583,10 +583,6 @@ package body Exp_Ch3 is
       Ptr       : Entity_Id;
 
    begin
-      if not Expander_Active then
-         return;
-      end if;
-
       --  Create List of actuals for indirect call. The last parameter of the
       --  subprogram declaration is the access value for the indirect call.
 
diff --git a/gcc/ada/sem_ch3.adb b/gcc/ada/sem_ch3.adb
index f360be810b4..29733e9d31f 100644
--- a/gcc/ada/sem_ch3.adb
+++ b/gcc/ada/sem_ch3.adb
@@ -3224,6 +3224,7 @@ package body Sem_Ch3 is
 
                if Ada_Version >= Ada_2022
                  and then Present (Aspect_Specifications (N))
+                 and then Expander_Active
                then
                   Build_Access_Subprogram_Wrapper (N);
                end if;
@@ -6915,16 +6916,7 @@ package body Sem_Ch3 is
       --  may be handled as a dispatching operation and erroneously registered
       --  in a dispatch table.
 
-      if not GNATprove_Mode then
-         Append_Freeze_Action (Id, New_Decl);
-
-      --  Under GNATprove mode there is no such problem but we do not declare
-      --  it in the freezing actions since they are not analyzed under this
-      --  mode.
-
-      else
-         Insert_After (Decl, New_Decl);
-      end if;
+      Append_Freeze_Action (Id, New_Decl);
 
       Set_Access_Subprogram_Wrapper (Designated_Type (Id), Subp);
       Build_Access_Subprogram_Wrapper_Body (Decl, New_Decl);
-- 
2.40.0