syntax_data: {"ast_node_type":"variable","tokens":[{"end":67,"kind":"keyword","start":0,"text":"&&"}]}
source_snippet:                         && let Some(adt_def) = expr_ty.ty_adt_def()
context_before:                     let adt_data = if let hir::ExprKind::Path(ref qpath) = fun.kind
context_after:                     {