syntax_data: {"ast_node_type":"impl","tokens":[{"end":51,"kind":"keyword","start":0,"text":"impl"}]}
source_snippet: impl Subdiagnostic for UnsafeNotInheritedLintNote {
context_after:     fn add_to_diag<G: EmissionGuarantee>(self, diag: &mut Diag<'_, G>) {