syntax_data: {"ast_node_type":"function","tokens":[{"end":52,"kind":"keyword","start":0,"text":"fn"}]}
source_snippet:     fn as_clause(self) -> Option<ty::Clause<'tcx>> {
context_before: impl<'tcx> rustc_type_ir::inherent::Predicate<TyCtxt<'tcx>> for Predicate<'tcx> {
context_after:         self.as_clause()