syntax_data: {"ast_node_type":"other","tokens":[{"end":66,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// Creates a `&mut Context<'_>` [`Ty`] with erased lifetimes.
context_after:     pub fn new_task_context(tcx: TyCtxt<'tcx>) -> Ty<'tcx> {