syntax_data: {"ast_node_type":"other","tokens":[{"end":83,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:                 // to have a landing pad. This means that we can remove any cleanup
context_before:                 // If this function call can't unwind, then there's no need for it
context_after:                 // registered for it (and turn it into `UnwindAction::Unreachable`).