syntax_data: {"ast_node_type":"other","tokens":[{"end":85,"kind":"keyword","start":0,"text":"dcx.emit_err(InvalidIntLiteralWidth"}]}
source_snippet:                 dcx.emit_err(InvalidIntLiteralWidth { span, width: suf[1..].into() })
context_before:                 // If it looks like a width, try to be helpful.
context_after:             } else if let Some(fixed) = fix_base_capitalisation(lit.symbol.as_str(), suf) {