syntax_data: {"ast_node_type":"other","tokens":[{"end":50,"kind":"keyword","start":0,"text":"Err(ErrorHandled::Reported(_,"}]}
source_snippet:             Err(ErrorHandled::Reported(_, _)) => {
context_before:             Ok(Ok(c)) => c,
context_after:                 // Let's tell the use where this failing const occurs.