module: trim off internal stack frames for require(esm) warnings

Trim off irrelevant internal stack frames for require(esm) warnings
so it's easier to locate where the call comes from when
--trace-warnings is used.
PR-URL: #55496
Reviewed-By: Marco Ippolito <marcoippolito54@gmail.com>
Reviewed-By: Paolo Insogna <paolo@cowtech.it>

Author: joyeecheung

lib/internal/modules/cjs/loader.js

@@ -1389,7 +1389,10 @@ function loadESMFromCJS(mod, filename) {
 messagePrefix=`${from} is loading ES Module ${to} using require().\n`;
 }
 }
-emitExperimentalWarning('Support for loading ES Module in require()',messagePrefix);
+emitExperimentalWarning('Support for loading ES Module in require()',
+messagePrefix,
+undefined,
+parent?.require);
 const{
  wrap,
  namespace,

lib/internal/util.js

@@ -266,14 +266,20 @@ function slowCases(enc) {
 }
 }
 
-functionemitExperimentalWarning(feature,messagePrefix){
+/**
+ * @param {string} feature Feature name used in the warning message
+ * @param {string} messagePrefix Prefix of the warning message
+ * @param {string} code See documentation of process.emitWarning
+ * @param {string} ctor See documentation of process.emitWarning
+ */
+functionemitExperimentalWarning(feature,messagePrefix,code,ctor){
 if(experimentalWarnings.has(feature))return;
 experimentalWarnings.add(feature);
 letmsg=`${feature} is an experimental feature and might change at any time`;
 if(messagePrefix){
 msg=messagePrefix+msg;
 }
-process.emitWarning(msg,'ExperimentalWarning');
+process.emitWarning(msg,'ExperimentalWarning',code,ctor);
 }
 
 functionfilterDuplicateStrings(items,low){

test/es-module/test-require-module-warning.js

@@ -0,0 +1,35 @@
+'use strict';
+
+// This checks the warning and the stack trace emitted by the require(esm)
+// experimental warning. It can get removed when `require(esm)` becomes stable.
+
+require('../common');
+const{ spawnSyncAndAssert }=require('../common/child_process');
+constfixtures=require('../common/fixtures');
+constassert=require('assert');
+
+spawnSyncAndAssert(process.execPath,[
+'--trace-warnings',
+fixtures.path('es-modules','require-module.js'),
+],{
+trim: true,
+stderr(output){
+constlines=output.split('\n');
+assert.match(
+lines[0],
+/ExperimentalWarning:CommonJSmodule.*require-module\.jsisloadingESModule.*message\.mjs/
+);
+assert.strictEqual(
+lines[1],
+'Support for loading ES Module in require() is an experimental feature and might change at any time'
+);
+assert.match(
+lines[2],
+/atrequire\(.*modules\/helpers:\d+:\d+\)/
+);
+assert.match(
+lines[3],
+/atObject\.<anonymous>\(.*require-module\.js:1:1\)/
+);
+}
+});

test/fixtures/es-modules/require-module.js

@@ -0,0 +1 @@
+require('./message.mjs');