syntax_data: {"ast_node_type":"variable","tokens":[{"end":83,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:     let nonblanket = children.non_blanket_impls.iter().flat_map(|(_, v)| v.iter());
context_before: fn iter_children(children: &Children) -> impl Iterator<Item = DefId> {
context_after:     children.blanket_impls.iter().chain(nonblanket).cloned()