/**
 * Escodegen generates source maps from the AST nodes' `loc` property, but
 * Rollup's `this.parse()` only exposes `start`/`end` offsets. This walks the
 * AST and adds equivalent `loc` information so a source map can be generated.
 */
export declare const addLocationsToAst: (ast: any, code: string, source: string) => any;