old_contents: import { parse } from './grammar/grammar';
  
  export default function parser( fileContent ) {
    return parse( fileContent );
  }
  
new_contents: import { parse } from './grammar/grammar';
  
  export default function parser( fileContent ) {
    try {
      return parse( fileContent );
    } catch (error) {
      if (error.name === 'SyntaxError') {
        error.message = error.message.replace(/\.$/, '') +
          ` in line ${ error.line }:${ error.column }.`;
        throw error;
      }
      throw error;
    }
  }
  
subject: enhance parsers SyntaxErrors with line and column