Type completions in jsDoc @augments and @implements tags.

Suggestion

Add code completions in jsDoc @augments and @implements clauses.

Use Cases

Anybody using the new @implements and @augments jsDoc tags will benefit from this.

Examples

Inside the {} triggering code completions should show types.

/**
 * @augments {}
 * @implements {}
 */
declare class B {
    b(): void;
    i(): void;
}

Checklist

My suggestion meets these guidelines:

• This wouldn't be a breaking change in existing TypeScript/JavaScript code
• This wouldn't change the runtime behavior of existing JavaScript code
• This could be implemented without emitting different JS based on the types of the expressions
• This isn't a runtime feature (e.g. library functionality, non-ECMAScript syntax with JavaScript output, etc.)
• This feature would agree with the rest of TypeScript's Design Goals.

This is a flow-on from #36292 cc: @sandersn