test: pause child until parent is ready

Pause child on startup using inspect-brk=0 until the parent debugger
is ready.

PR-URL: #15774
Fixes: #14897
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>

test/sequential/sequential.status

@@ -10,7 +10,6 @@ prefix sequential
 test-inspector-async-call-stack       : PASS, FLAKY
 test-inspector-bindings               : PASS, FLAKY
 test-inspector-debug-end              : PASS, FLAKY
-test-inspector-stop-profile-after-done: PASS, FLAKY
 
 [$system==linux]
 
@@ -21,4 +20,3 @@ test-inspector-stop-profile-after-done: PASS, FLAKY
 [$system==freebsd]
 
 [$system==aix]
-test-inspector-stop-profile-after-done: PASS, FLAKY

test/sequential/test-inspector-stop-profile-after-done.js

@@ -5,7 +5,7 @@ const assert = require('assert');
 const { NodeInstance } = require('../common/inspector-helper.js');
 
 async function runTests() {
-  const child = new NodeInstance(['--inspect=0'],
+  const child = new NodeInstance(['--inspect-brk=0'],
                                  `let c = 0;
                                   const interval = setInterval(() => {
                                    console.log(new Object());