Fix #1635, can't generate lua bindings for set/get Node localZOrder

---------------------------

reporeted by @bintester

CHANGELOG.md

@@ -7,6 +7,8 @@
 - Fix build lua projects with engine prebuilts lib doesn't work, reported by @grif-on
 - Fix GUI ScrollView clipping bug and add lua support by @bintester
 - Ensure scissor state is set to the correct value prior to a buffer clear by @rh101
+- Fix memory leaks when app exit on non-embed systems by @halx99 and @lich426
+- Fix can't generate lua bindings for set/get Node localZOrder, reporeted by @bintester
 
 ## Improvements
 

core/2d/Node.cpp

@@ -273,7 +273,7 @@ void Node::setSkewY(float skewY)
     _transformUpdated = _transformDirty = _inverseDirty = true;
 }
 
-void Node::setLocalZOrder(std::int32_t z)
+void Node::setLocalZOrder(int z)
 {
     if (getLocalZOrder() == z)
         return;
@@ -289,7 +289,7 @@ void Node::setLocalZOrder(std::int32_t z)
 
 /// zOrder setter : private method
 /// used internally to alter the zOrder variable. DON'T call this method manually
-void Node::_setLocalZOrder(std::int32_t z)
+void Node::_setLocalZOrder(int z)
 {
     _localZOrder = z;
 }

core/2d/Node.h

@@ -172,13 +172,13 @@ class AX_DLL Node : public Ref
      *
      * @param localZOrder The local Z order value.
      */
-    virtual void setLocalZOrder(std::int32_t localZOrder);
+    virtual void setLocalZOrder(int localZOrder);
 
     /*
      Helper function used by `setLocalZOrder`. Don't use it unless you know what you are doing.
      @js NA
      */
-    virtual void _setLocalZOrder(std::int32_t z);
+    virtual void _setLocalZOrder(int z);
 
     /** !!! ONLY FOR INTERNAL USE
     * Sets the arrival order when this node has a same ZOrder with other children.
@@ -201,7 +201,7 @@ class AX_DLL Node : public Ref
      * @return The local (relative to its siblings) Z order.
      */
 
-    virtual std::int32_t getLocalZOrder() const { return _localZOrder; }
+    virtual int getLocalZOrder() const { return _localZOrder; }
 
     /**
      Defines the order in which the nodes are renderer.