syntax_data: {"ast_node_type":"other","tokens":[{"end":54,"kind":"keyword","start":0,"text":"StatementKind::Assign(box"}]}
source_snippet:             StatementKind::Assign(box (lhs, rhs)) => {
context_before:         match &statement.kind {
context_after:                 self.check_assigned_place(*lhs, |this| this.visit_rvalue(rhs, location));