syntax_data: {"ast_node_type":"other","tokens":[{"end":22,"kind":"keyword","start":0,"text":"base"}]}
source_snippet:                 base =
context_before:                 // inlined from add_move_path because of a borrowck conflict with the iterator
context_after:                     *data.rev_lookup.projections.entry((base, elem.lift())).or_insert_with(|| {