syntax_data: {"ast_node_type":"other","tokens":[{"end":69,"kind":"keyword","start":0,"text":"stuff"}]}
source_snippet: stuff in the control-flow graph. Whenever the scope is exited, either
context_before: basic block); this marks the entry to the scope. We then generate more
context_after: via a `break` or `return` or just by fallthrough, that marks an exit