syntax_data: {"ast_node_type":"other","tokens":[{"end":67,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:                 // We're only interested in types involving regions
context_before:             fn visit_ty(&mut self, ty: Ty<'tcx>) -> Self::Result {
context_after:                 if ty.flags().intersects(TypeFlags::HAS_FREE_REGIONS) {