lib: refactor source_map to avoid unsafe array iteration

PR-URL: #36734 Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Pooja D P <Pooja.D.P@ibm.com>

Author: aduh95

lib/internal/source_map/source_map.js

@@ -334,8 +334,8 @@ function cloneSourceMapV3(payload) {
  * @return {number}
  */
 function compareSourceMapEntry(entry1, entry2) {
- const [lineNumber1, columnNumber1] = entry1;
- const [lineNumber2, columnNumber2] = entry2;
+ const { 0: lineNumber1, 1: columnNumber1 } = entry1;
+ const { 0: lineNumber2, 1: columnNumber2 } = entry2;
  if (lineNumber1 !== lineNumber2) {
  return lineNumber1 - lineNumber2;
  }

lib/internal/source_map/source_map_cache.js

@@ -138,7 +138,7 @@ function sourceMapFromFile(mapURL) {
 // data:[<mediatype>][;base64],<data> see:
 // https://tools.ietf.org/html/rfc2397#section-2
 function sourceMapFromDataUrl(sourceURL, url) {
- const [format, data] = StringPrototypeSplit(url, ',');
+ const { 0: format, 1: data } = StringPrototypeSplit(url, ',');
  const splitFormat = StringPrototypeSplit(format, ';');
  const contentType = splitFormat[0];
  const base64 = splitFormat[splitFormat.length - 1] === 'base64';