syntax_data: {"ast_node_type":"other","tokens":[{"end":44,"kind":"keyword","start":0,"text":"drop_nodes:"}]}
source_snippet:     drop_nodes: IndexVec<DropIdx, DropNode>,
context_before:     /// Nodes in the drop tree, containing drop data and a link to the next node.
context_after:     /// Map for finding the index of an existing node, given its contents.