chore: address code review

lib/internal/source_map/source_map_cache.js

@@ -80,7 +80,10 @@ function dataFromUrl(basePath, sourceMappingURL) {
 // from. This allows translation from byte offset V8 coverage reports,
 // to line/column offset Source Map V3.
 function lineLengths(content) {
-  return content.split('\n').map((line) => {
+  // We purposefully keep \r as part of the line-length calculation, in
+  // cases where there is a \r\n separator, so that this can be taken into
+  // account in coverage calculations.
+  return content.split(/\n|\u2028|\u2029/).map((line) => {
     return line.length;
   });
 }