syntax_data: {"ast_node_type":"variable","tokens":[{"end":91,"kind":"keyword","start":0,"text":"}"}]}
source_snippet:             } else if let Some(fixed) = fix_base_capitalisation(lit.symbol.as_str(), suf) {
context_before:                 dcx.emit_err(InvalidIntLiteralWidth { span, width: suf[1..].into() })
context_after:                 dcx.emit_err(InvalidNumLiteralBasePrefix { span, fixed })