[COMMITTED] ada: Trivial refactoring in Instantiate_*_Body

[COMMITTED] ada: Trivial refactoring in Instantiate_*_Body

[Marc Poulhiès]

Factor out Par_Vis/Install_Parent/Par_Installed in Instantiate_Package_Body
and Instantiate_Subprogram_Body.

gcc/ada/

	* sem_ch12.adb (Instantiate_Package_Body): Simplify if/then/else.
	(Instantiate_Subprogram_Body): Likewise.

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

---
 gcc/ada/sem_ch12.adb | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)

diff --git a/gcc/ada/sem_ch12.adb b/gcc/ada/sem_ch12.adb
index 39ceaf7c16f..c4cc641c68c 100644
--- a/gcc/ada/sem_ch12.adb
+++ b/gcc/ada/sem_ch12.adb
@@ -12175,9 +12175,6 @@ package body Sem_Ch12 is
            and then Nkind (Gen_Id) = N_Expanded_Name
          then
             Par_Ent := Entity (Prefix (Gen_Id));
-            Par_Vis := Is_Immediately_Visible (Par_Ent);
-            Install_Parent (Par_Ent, In_Body => True);
-            Par_Installed := True;
 
          elsif Ekind (Scope (Gen_Unit)) = E_Generic_Package
            and then Ekind (Scope (Act_Decl_Id)) = E_Package
@@ -12189,12 +12186,12 @@ package body Sem_Ch12 is
             Par_Ent := Entity
               (Prefix (Name (Get_Unit_Instantiation_Node
                                (Scope (Act_Decl_Id)))));
-            Par_Vis := Is_Immediately_Visible (Par_Ent);
-            Install_Parent (Par_Ent, In_Body => True);
-            Par_Installed := True;
 
          elsif Is_Child_Unit (Gen_Unit) then
             Par_Ent := Scope (Gen_Unit);
+         end if;
+
+         if Present (Par_Ent) then
             Par_Vis := Is_Immediately_Visible (Par_Ent);
             Install_Parent (Par_Ent, In_Body => True);
             Par_Installed := True;
@@ -12611,12 +12608,11 @@ package body Sem_Ch12 is
            and then Nkind (Gen_Id) = N_Expanded_Name
          then
             Par_Ent := Entity (Prefix (Gen_Id));
-            Par_Vis := Is_Immediately_Visible (Par_Ent);
-            Install_Parent (Par_Ent, In_Body => True);
-            Par_Installed := True;
-
          elsif Is_Child_Unit (Gen_Unit) then
             Par_Ent := Scope (Gen_Unit);
+         end if;
+
+         if Present (Par_Ent) then
             Par_Vis := Is_Immediately_Visible (Par_Ent);
             Install_Parent (Par_Ent, In_Body => True);
             Par_Installed := True;
-- 
2.40.0