syntax_data: {"ast_node_type":"other","tokens":[{"end":39,"kind":"keyword","start":0,"text":"Region::new_error_with_message("}]}
source_snippet:         Region::new_error_with_message(
context_before:     pub fn new_error_misc(tcx: TyCtxt<'tcx>) -> Region<'tcx> {
context_after:             tcx,