Revert "simpler adding --no-async-context-frame (#5717)"

This reverts commit fcf95b2.

Author: szegedi

packages/dd-trace/test/setup/core.js

@@ -59,23 +59,29 @@ if (NODE_MAJOR >= 24 && !process.env.OPTIONS_OVERRIDE) {
   const childProcess = require('child_process')
   const { exec, fork } = childProcess
 
-  function addAsyncContextFrame (fn, thisArg, args) {
+  childProcess.exec = function (...args) {
     const opts = args[1]
     if (opts) {
-      const env = opts.env ||= {}
-      env.NODE_OPTIONS ||= ''
-      if (!env.NODE_OPTIONS.includes('--no-async-context-frame')) {
-        env.NODE_OPTIONS += ' --no-async-context-frame'
+      if (opts?.env?.NODE_OPTIONS && !opts.env.NODE_OPTIONS.includes('--no-async-context-frame')) {
+        opts.env.NODE_OPTIONS += ' --no-async-context-frame'
+      } else {
+        opts.env ||= {}
+        opts.env.NODE_OPTIONS = '--no-async-context-frame'
       }
     }
-    return fn.apply(thisArg, args)
+    return exec.apply(this, args)
   }
 
-  childProcess.exec = function () {
-    return addAsyncContextFrame(exec, this, arguments)
-  }
-
-  childProcess.fork = function () {
-    return addAsyncContextFrame(fork, this, arguments)
+  childProcess.fork = function (...args) {
+    const opts = args[1]
+    if (opts) {
+      if (opts?.env?.NODE_OPTIONS && !opts.env.NODE_OPTIONS.includes('--no-async-context-frame')) {
+        opts.env.NODE_OPTIONS += ' --no-async-context-frame'
+      } else {
+        opts.env ||= {}
+        opts.env.NODE_OPTIONS = '--no-async-context-frame'
+      }
+    }
+    return fork.apply(this, args)
   }
 }