[BUG] Trace view won't show a resolved waitForLoadState call

[kblok]

Context:

• Playwright Version: 1.26.1
• Operating System: Mac
• Node.js version: 14.6
• Browser: All

import { test, expect } from '@playwright/test';

test('wait', async ({ page }) => {
  await page.goto('https://www.github.com/');
  await page.waitForLoadState('networkidle');
  await page.waitForLoadState('networkidle');
});

Describe the bug

As the second waitForLoadState is immediately resolved. Playwright won't add a new trace line.
From the user's standpoint. If I write two waitForLoadState calls, I should get two lines on the trace viewer. This is a naive example, but it could be confusing if you need to debug a more complicated scenario, and I see that the trace is not reflecting my code.