Added SetEntityName and exposed Get/SetEntityName to the behavior context for use from scripts.

(cherry picked from commit 4f2e0b74727cfe99c74ed588769a540f24d7aa46)

Code/Framework/AzCore/AzCore/Component/ComponentApplication.cpp

@@ -341,6 +341,16 @@ namespace AZ
                     ;
             }
         }
+
+        if (auto behaviorContext = azrtti_cast<AZ::BehaviorContext*>(context))
+        {
+            behaviorContext->EBus<ComponentApplicationBus>("ComponentApplicationBus")
+                ->Attribute(AZ::Script::Attributes::Scope, AZ::Script::Attributes::ScopeFlags::Common)
+                ->Attribute(AZ::Script::Attributes::Category, "Components")
+
+                ->Event("GetEntityName", &ComponentApplicationBus::Events::GetEntityName)
+                ->Event("SetEntityName", &ComponentApplicationBus::Events::SetEntityName);
+        }
     }
 
     //=========================================================================
@@ -1050,6 +1060,20 @@ namespace AZ
         return AZStd::string();
     }
 
+    //=========================================================================
+    // SetEntityName
+    //=========================================================================
+    bool ComponentApplication::SetEntityName(const EntityId& id, const AZStd::string& name)
+    {
+        Entity* entity = FindEntity(id);
+        if (entity)
+        {
+            entity->SetName(name);
+            return true;
+        }
+        return false;
+    }
+
     //=========================================================================
     // EnumerateEntities
     //=========================================================================

Code/Framework/AzCore/AzCore/Component/ComponentApplication.h

@@ -209,6 +209,7 @@ namespace AZ
         bool DeleteEntity(const EntityId& id) override;
         Entity* FindEntity(const EntityId& id) override;
         AZStd::string GetEntityName(const EntityId& id) override;
+        bool SetEntityName(const EntityId& id, const AZStd::string& name) override;
         void EnumerateEntities(const ComponentApplicationRequests::EntityCallback& callback) override;
         ComponentApplication* GetApplication() override { return this; }
         /// Returns the serialize context that has been registered with the app, if there is one.

Code/Framework/AzCore/AzCore/Component/ComponentApplicationBus.h

@@ -130,7 +130,13 @@ namespace AZ
         //! @param entity A reference to the entity whose name you are seeking.
         //! @return The name of the entity with the specified entity ID. 
         //! If no entity is found for the specified ID, it returns an empty string. 
-        virtual AZStd::string GetEntityName(const EntityId& id) { (void)id; return AZStd::string(); };
+        virtual AZStd::string GetEntityName(const EntityId& id) { (void)id; return AZStd::string(); }
+
+        //! Sets the name of the entity that has the specified entity ID.
+        //! Entity names are not enforced to be unique.
+        //! @param entityId A reference to the entity whose name you want to change.
+        //! @return True if the name was changed successfully, false if it wasn't.
+        virtual bool SetEntityName([[maybe_unused]] const EntityId& id, [[maybe_unused]] const AZStd::string& name) { return false; }
 
         //! The type that AZ::ComponentApplicationRequests::EnumerateEntities uses to
         //! pass entity callbacks to the application for enumeration.