{"ast_node_type":"impl","tokens":[{"end":87,"kind":"keyword","start":0,"text":"//"}]}
    // unfortunately `syntax` collides with the impl above, because `&_` is fundamental
impl<FileId: Copy, N: AstNode> InFileWrapper<FileId, &N> {
    pub fn syntax_ref(&self) -> InFileWrapper<FileId, &SyntaxNode> {