sdk-builder: filter out methods that have an empty name because those exist somehow

sdk-builder/src/main.rs

@@ -609,6 +609,7 @@ pub mod rust {
             let methods = class
                 .methods
                 .iter()
+                .filter(|method| !method.unique_name().is_empty())
                 .map(|method| self.generate_method(name, method))
                 .collect::<Result<Vec<_>, _>>()?;