syntax_data: {"ast_node_type":"variable","tokens":[{"end":78,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:     let nonblanket = children.non_blanket_impls.entry(st).or_default().iter();
context_before: fn filtered_children(children: &mut Children, st: SimplifiedType) -> impl Iterator<Item = DefId> {
context_after:     children.blanket_impls.iter().chain(nonblanket).cloned()