syntax_data: {"ast_node_type":"other","tokens":[{"end":22,"kind":"keyword","start":0,"text":"debug_assert!("}]}
source_snippet:         debug_assert!(
context_before:     fn diverge_dropline_target(&mut self, target_scope: region::Scope, span: Span) -> DropIdx {
context_after:             self.coroutine.is_some(),