fix solution contents duplication on spill behavior (#33231)

* I’M SCREAMING INTO THE VOID AND IT’S NOT LISTENING

* review

* explodes pancakes with mind

* graaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

* Meteors RAAAAAAAAAAH

* I'm so tired of solutions

* whhop

* revert

---------

Co-authored-by: Princess Cheeseballs <66055347+Pronana@users.noreply.github.com>

Content.Shared/Fluids/SharedPuddleSystem.cs

@@ -354,6 +354,15 @@ public abstract partial class SharedPuddleSystem : EntitySystem
     }
 
     #region Spill
+
+    /// <inheritdoc cref="TrySplashSpillAt(EntityUid,EntityCoordinates,Solution,out EntityUid,bool,EntityUid?)"/>
+    public abstract bool TrySplashSpillAt(Entity<SpillableComponent?> entity,
+        EntityCoordinates coordinates,
+        out EntityUid puddleUid,
+        out Solution spilled,
+        bool sound = true,
+        EntityUid? user = null);
+
     // These methods are in Shared to make it easier to interact with PuddleSystem in Shared code.
     // Note that they always fail when run on the client, not creating a puddle and returning false.
     // Adding proper prediction to this system would require spawning temporary puddle entities on the
@@ -367,9 +376,9 @@ public abstract partial class SharedPuddleSystem : EntitySystem
     /// <remarks>
     /// On the client, this will always set <paramref name="puddleUid"/> to <see cref="EntityUid.Invalid"/> and return false.
     /// </remarks>
-    public abstract bool TrySplashSpillAt(EntityUid uid,
+    public abstract bool TrySplashSpillAt(EntityUid entity,
         EntityCoordinates coordinates,
-        Solution solution,
+        Solution spilled,
         out EntityUid puddleUid,
         bool sound = true,
         EntityUid? user = null);