Component generic type inference issue

[ryu-man]

Describe the bug
Svelte extension is unable to infer the generic type of a component (in .svelte file) from props

To Reproduce
Steps to reproduce the behavior:

A.svelte

<script>
  export let prop
</script>

A.svelte.d.ts
export default class A<T> extends SvelteComponentTyped<{prop:T}>

App.svelte

<script>
    import A from './A.svelte'
</script>

// type inference work for prop but not for the component
<A  prop={3} />

Expected behavior
Component declared with generics should infer the types from props

Screenshots
If applicable, add screenshots to help explain your problem.

Type inference works fine when the component instantiated in a js file

System (please complete the following information):

• OS: Windows
• IDE: VSCode
• Plugin/Package: Svelte for VSCode

[dummdidumm]

svelte2tsx transformation:

///<reference types="svelte" />
<></>;
import A from './A.svelte';
function render() {

  
;
() => (<>

<A prop={3} >{() => { let {prop} = __sveltets_instanceOf(A).$$slot_def['default'];<>
  {prop}
</>}}</A>
</>);
return { props: {}, slots: {}, getters: {}, events: {} }}

export default class extends createSvelte2TsxComponent(__sveltets_partial(__sveltets_with_any_event(render))) {
}

__sveltets_instanceOf(A) doesn't work here because the $$slot type is dictated by the props. It needs to be new A({target: null, props: { prop: 3 }}) instead. Same for events probably. Not sure if this will also fix the hover bug, but I could live with that not getting inferred.