Marked an our parameter correctly and changed a ref to const ref

Code/Framework/AzToolsFramework/AzToolsFramework/Prefab/PrefabDomUtils.h

@@ -103,7 +103,7 @@ namespace AzToolsFramework
             /**
              * Gets a set of all the template source paths in the given dom.
              * @param prefabDom The DOM to get the template source paths from.
-             * @param templateSourcePaths The set of template source paths to populate.
+             * @param[out] templateSourcePaths The set of template source paths to populate.
              */
             void GetTemplateSourcePaths(const PrefabDomValue& prefabDom, AZStd::unordered_set<AZ::IO::Path>& templateSourcePaths);
 

Code/Framework/AzToolsFramework/AzToolsFramework/Prefab/PrefabPublicHandler.cpp

@@ -282,7 +282,7 @@ namespace AzToolsFramework
         }
 
         bool PrefabPublicHandler::IsCyclicalDependencyFound(
-            InstanceOptionalConstReference instance, AZStd::unordered_set<AZ::IO::Path>& templateSourcePaths)
+            InstanceOptionalConstReference instance, const AZStd::unordered_set<AZ::IO::Path>& templateSourcePaths)
         {
             InstanceOptionalConstReference currentInstance = instance;
 

Code/Framework/AzToolsFramework/AzToolsFramework/Prefab/PrefabPublicHandler.h

@@ -114,7 +114,7 @@ namespace AzToolsFramework
              * \return true if any of the template source paths could be found in the ancestor hierarchy of instance, false otherwise.
              */
             bool IsCyclicalDependencyFound(
-                InstanceOptionalConstReference instance, AZStd::unordered_set<AZ::IO::Path>& templateSourcePaths);
+                InstanceOptionalConstReference instance, const AZStd::unordered_set<AZ::IO::Path>& templateSourcePaths);
 
             static Instance* GetParentInstance(Instance* instance);
             static Instance* GetAncestorOfInstanceThatIsChildOfRoot(const Instance* ancestor, Instance* descendant);