2.16.0 this._recompute is not a function

[thgh]

Component:

<h1>Hello {name}</h1>
<script>
  export default {
    tag: 'my-app',
    props: ['name']
  }
</script>

Compiled with

npx svelte@2 compile MyApp.html --customElement --output MyApp.js

In use:

<my-app name="world"></my-app>
<script type="module" src="./MyApp.js"></script>
or
<my-app name="world"></my-app>
<script type="module">
  import './MyApp.js'
</script>
or
<script type="module">
  import './MyApp.js'
  document.body.innerHTML = '<my-app name="world">'
</script>

All give the same error in: Chrome 71.0.3578.98 & Firefox 65 & Safari 12.0.3

VM569 MyApp.js:202 Uncaught TypeError: this._recompute is not a function
    at HTMLElement._set (VM569 MyApp.js:202)
    at HTMLElement.set (VM569 MyApp.js:183)
    at HTMLElement.attributeChangedCallback (VM569 MyApp.js:64)
    at VM569 MyApp.js:85

Actual generated code:

...
MyApp.prototype._recompute = noop;
customElements.define("my-app", MyApp);
...

Expected (or at least working) code:

...
customElements.define("my-app", MyApp);
MyApp.prototype._recompute = noop;
...

Related line of code:

svelte/src/compile/render-dom/index.ts

Line 322 in c0fb21d

` : (!sharedPath && `${name}.prototype._recompute = @noop;`)}

(this bug blocks a proper answer for #2033)