syntax_data: {"ast_node_type":"other","tokens":[{"end":79,"kind":"keyword","start":0,"text":"self.normalize_generic_arg_after_erasing_regions(ty.into()).expect_ty()"}]}
source_snippet:         self.normalize_generic_arg_after_erasing_regions(ty.into()).expect_ty()
context_before:     fn fold_ty(&mut self, ty: Ty<'tcx>) -> Ty<'tcx> {
context_after:     }