title: Property 'RelativeTimeFormat' does not exist on type 'typeof Intl'
body: <p>There are no errors while writing the code, but this occurs during compilation:</p>
  <pre><code>src/index.ts:2:24 - error TS2339: Property 'RelativeTimeFormat' does not exist on type 'typeof Intl'.
  
  2   const rtf = new Intl.RelativeTimeFormat(&quot;en&quot;, { style: &quot;long&quot; });
                           ~~~~~~~~~~~~~~~~~~
  
  
  Found 1 error.
  </code></pre>
  <p>Although this problem should have been solved after <a href="https://github.com/microsoft/TypeScript/pull/36084" rel="noreferrer"><strong>this PR</strong></a>.</p>
  <p>My <strong>tsconfig</strong>:</p>
  <pre><code>{
    &quot;compilerOptions&quot;: {
      &quot;target&quot;: &quot;ESNext&quot;,
      &quot;module&quot;: &quot;CommonJS&quot;,
      &quot;moduleResolution&quot;: &quot;Node&quot;,
      &quot;outDir&quot;: &quot;lib&quot;,
      &quot;lib&quot;: [
        &quot;DOM&quot;,
        &quot;ESNext&quot;
      ],
      &quot;strict&quot;: true,
      &quot;declaration&quot;: true,
      &quot;removeComments&quot;: true,
      &quot;sourceMap&quot;: true,
      &quot;esModuleInterop&quot;: true,
      &quot;allowSyntheticDefaultImports&quot;: true,
      &quot;importHelpers&quot;: true,
      &quot;skipLibCheck&quot;: true,
      &quot;forceConsistentCasingInFileNames&quot;: true,
      &quot;resolveJsonModule&quot;: true,
      &quot;isolatedModules&quot;: true
    },
    &quot;include&quot;: [
      &quot;src&quot;
    ]
  }
  </code></pre>
  <p>TypeScript version: <strong>4.0.3</strong></p>