New Code Completion

-=-=-=-=-=-=-=-=-=-

-Massive improvement to code completion
-Argument hinting for functions

If you manage to out-smart the code-completion in a situation where completion
should be possible to guess, let me know.

 Please enter the commit message for your changes. Lines starting

tools/editor/plugins/collision_polygon_editor_plugin.cpp

@@ -120,6 +120,8 @@ void CollisionPolygonEditor::_wip_close() {
 
 bool CollisionPolygonEditor::forward_spatial_input_event(Camera* p_camera,const InputEvent& p_event) {
 
+	if (!node)
+		return false;
 
 	Transform gt = node->get_global_transform();
 	float depth = node->get_depth()*0.5;