syntax_data: {"ast_node_type":"other","tokens":[{"end":62,"kind":"keyword","start":0,"text":")"}]}
source_snippet:     ) -> LocalTableInContextMut<'_, CanonicalUserType<'tcx>> {
context_before:         &mut self,
context_after:         LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.user_provided_types }