esm: improve `getFormatOfExtensionlessFile` perf.
Move openSync, readSync and closeSync logic to C++ and return int for performance.
cc @nodejs/performance we can use a similar approach to this pull request on other places in node.js core.
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Move openSync, readSync and closeSync logic to C++ and return int for performance.
cc @nodejs/performance we can use a similar approach to this pull request on other places in node.js core.