Fix gdnative generation for lightmapper.

scene/3d/baked_lightmap.cpp

@@ -702,6 +702,12 @@ void BakedLightmap::_bind_methods() {
 	BIND_ENUM_CONSTANT(BAKE_QUALITY_HIGH);
 	BIND_ENUM_CONSTANT(BAKE_MODE_CONE_TRACE);
 	BIND_ENUM_CONSTANT(BAKE_MODE_RAY_TRACE);
+
+	BIND_ENUM_CONSTANT(BAKE_ERROR_OK);
+	BIND_ENUM_CONSTANT(BAKE_ERROR_NO_SAVE_PATH);
+	BIND_ENUM_CONSTANT(BAKE_ERROR_NO_MESHES);
+	BIND_ENUM_CONSTANT(BAKE_ERROR_CANT_CREATE_IMAGE);
+	BIND_ENUM_CONSTANT(BAKE_ERROR_USER_ABORTED);
 }
 
 BakedLightmap::BakedLightmap() {