syntax_data: {"ast_node_type":"other","tokens":[{"end":19,"kind":"keyword","start":0,"text":"#[track_caller]"}]}
source_snippet:     #[track_caller]
context_before:     /// Constructs a `TyKind::Error` type and registers a `span_delayed_bug` to ensure it gets used.
context_after:     pub fn new_misc_error(tcx: TyCtxt<'tcx>) -> Ty<'tcx> {