syntax_data: {"ast_node_type":"variable","tokens":[{"end":71,"kind":"keyword","start":0,"text":"if"}]}
source_snippet:     if let mir::StatementKind::Assign(box (place, rvalue)) = &stmt.kind
context_before: ) -> Option<&'a mir::Rvalue<'tcx>> {
context_after:         && let Some(l) = place.as_local()