[Ada] Mark Requires_Transient_Scope as Inline

[Pierre-Marie de Rodat via Gcc-patches]

The predicate is now a simple disjunction of two other predicates.

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

gcc/ada/

        * sem_util.ads (Requires_Transient_Scope): Add pragma Inline.
diff --git a/gcc/ada/sem_util.ads b/gcc/ada/sem_util.ads
--- a/gcc/ada/sem_util.ads
+++ b/gcc/ada/sem_util.ads
@@ -3068,6 +3068,7 @@ package Sem_Util is
    --  previous errors (particularly in -gnatq mode).
 
    function Requires_Transient_Scope (Typ : Entity_Id) return Boolean;
+   pragma Inline (Requires_Transient_Scope);
    --  Return true if temporaries of Typ need to be wrapped in a transient
    --  scope, either because they are allocated on the secondary stack or
    --  finalization actions must be generated before the next instruction.