test: avoid flaky debugger restart waits · nodejs/node@604456c

Original file line number	Diff line number	Diff line change
`@@ -25,7 +25,11 @@ const startCLI = require('../common/debugger');`
`25`	`25`	`assert.strictEqual(cli.output.match(listeningRegExp).length, 1);`
`26`	`26`
`27`	`27`	`for (let i = 0; i < RESTARTS; i++) {`
`28`		`-await cli.stepCommand('restart');`
	`28`	+// For `restart`, sync on attach/prompt instead of BREAK_MESSAGE to avoid flaky races.
	`29`	`+// https://github.com/nodejs/node/issues/61762`
	`30`	`+await cli.command('restart');`
	`31`	`+await cli.waitFor(/Debugger attached\./);`
	`32`	`+await cli.waitForPrompt();`
`29`	`33`	`assert.strictEqual(cli.output.match(listeningRegExp).length, 1);`
`30`	`34`	`}`
`31`	`35`	`} finally {`

Original file line number	Diff line number	Diff line change
`@@ -57,7 +57,7 @@ const path = require('path');`
`57`	`57`	`{ filename: script, line: 2 },`
`58`	`58`	`);`
`59`	`59`	`})`
`60`		`-.then(() => cli.stepCommand('restart'))`
	`60`	`+.then(() => cli.command('restart'))`
`61`	`61`	`.then(() => cli.waitForInitialBreak())`
`62`	`62`	`.then(() => {`
`63`	`63`	`assert.deepStrictEqual(`