syntax_data: {"ast_node_type":"other","tokens":[{"end":90,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:         // scope, the old, cached blocks, without `drop(new)` will get used, producing the
context_before:         // outer_scope and middle_scope, then, when building drops for the inner (rightmost)
context_after:         // wrong results.