syntax_data: {"ast_node_type":"other","tokens":[{"end":77,"kind":"keyword","start":0,"text":"siblings.remove_existing(tcx,"}]}
source_snippet:                             siblings.remove_existing(tcx, grand_child_to_be);
context_before:                         for &grand_child_to_be in &grand_children_to_be {
context_after:                         }