syntax_data: {"ast_node_type":"other","tokens":[{"end":98,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:                     // `in_scope`, and a labeled block can be broken out of with a `break 'label`,
context_before:                     // This is logic for the labeled block: a block is a drop scope, hence
context_after:                     // hence the `in_breakable_scope`.