{"ast_node_type":"other","tokens":[{"end":96,"kind":"keyword","start":0,"text":"token::OpenInvisible(InvisibleOrigin::MetaVar(_))"}]}
            token::OpenInvisible(InvisibleOrigin::MetaVar(_)) => self.look_ahead(1, |t| t.span),
            token::NtIdent(ident, _) | token::NtLifetime(ident, _) => ident.span,
            _ => self.token.span,