Declarations are not generated for a high order component

TypeScript Version: 3.2.0-dev.201xxxxx, 2.9.1, 3.1.3

Search Terms:

declaration, high-order, hoc

Code

export function Executor(func: () => any) {
  class ExecutingClass {
    execute() {
      func();
    }
  }

  return ExecutingClass;
}

Expected behavior:

Running both tsc and tsc -d produces no errors.

Actual behavior:

When I'm running tsc on this code, everything works fine.
When I'm running tsc -d on this code, I have this error:

hoc.ts:1:17 - error TS4060: Return type of exported function has or is using private name 'ExecutingClass'.

1 export function Executor(func: () => any) {

It is still possible to generate typings for this if you change code to this:

export function Executor(func: () => any) {
  const ExecutingClass = class {
    execute() {
      func();
    }
  }

  return ExecutingClass;
}

export default Executor;

Riproduci l'esempio con le versioni di TypeScript elencate usando sia tsc sia tsc -d, quindi confronta il comportamento con la variante con classe anonima. Il problema è risolto quando il componente di ordine superiore esportato originariamente genera dichiarazioni senza TS4060; non vengono indicati file del repository né test.