Short patch to load *.mjs from Mocha; run like `mocha test/*.mjs`

mocha-native-esm.patch

--- a/node_modules/mocha/lib/mocha.js
+++ b/node_modules/mocha/lib/mocha.js
@@ -321,15 +321,15 @@ Mocha.prototype.ui = function(ui) {
  * @see {@link Mocha#unloadFiles}
  * @param {Function} [fn] - Callback invoked upon completion.
  */
-Mocha.prototype.loadFiles = function(fn) {
+Mocha.prototype.loadFiles = async function(fn) {
   var self = this;
   var suite = this.suite;
-  this.files.forEach(function(file) {
+  for await (let file of this.files) {
     file = path.resolve(file);
     suite.emit(EVENT_FILE_PRE_REQUIRE, global, file, self);
-    suite.emit(EVENT_FILE_REQUIRE, require(file), file, self);
+    suite.emit(EVENT_FILE_REQUIRE, await import(file), file, self);
     suite.emit(EVENT_FILE_POST_REQUIRE, global, file, self);
-  });
+  }
   fn && fn();
 };
 
@@ -799,9 +799,9 @@ Object.defineProperty(Mocha.prototype, 'version', {
  * @param {DoneCB} [fn] - Callback invoked when test execution completed.
  * @return {Runner} runner instance
  */
-Mocha.prototype.run = function(fn) {
+Mocha.prototype.run = async function(fn) {
   if (this.files.length) {
-    this.loadFiles();
+    await this.loadFiles();
   }
   var suite = this.suite;
   var options = this.options;