syntax_data: {"ast_node_type":"other","tokens":[{"end":54,"kind":"keyword","start":0,"text":"rustc_hir::OpaqueTyOrigin::FnReturn"}]}
source_snippet:             rustc_hir::OpaqueTyOrigin::FnReturn { .. }
context_before:         match self.tcx.local_opaque_ty_origin(alias_ty.def_id.expect_local()) {
context_after:             | rustc_hir::OpaqueTyOrigin::AsyncFn { .. } => {}