syntax_data: {"ast_node_type":"other","tokens":[{"end":48,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// [`PatMigration::visit_implicit_derefs`].
context_before:     /// This should follow a call to either [`PatMigration::visit_explicit_deref`] or
context_after:     pub(super) fn leave_ref(&mut self, old_mode_span: Option<(Span, Mutability)>) {