syntax_data: {"ast_node_type":"other","tokens":[{"end":79,"kind":"keyword","start":0,"text":"match"}]}
source_snippet:         match self.tcx.local_opaque_ty_origin(alias_ty.def_id.expect_local()) {
context_before:         // TAITs outside their defining scopes are ignored.
context_after:             rustc_hir::OpaqueTyOrigin::FnReturn { .. }