Minify should remove e:break e;

[colelawrence]

Hi there, I'm doing something a little funny in order to put some type-only tests in my TypeScript files and they look like the following:

/**
 *  * `A` is assignable to `B`, and
 *  * `B` is assignable to `C`, but
 *  * `A` is *not* assignable to `C`
 */
declare namespace Intransitive {
  // A assignable to B
  export type A = (x?: false) => never;
  // B assignable to C
  export type B = () => boolean;
  // A not assignable to C
  export type C = (x?: true) => unknown;
}

/* eslint-disable */
typeTestIntransitive: {
  if (1 as 0) break typeTestIntransitive;
  let a: Intransitive.A = null!;
  let b: Intransitive.B = null!;
  let c: Intransitive.C = null!;
  b = a;
  c = b;
  // @ts-expect-error
  c = a;
  // @ts-expect-error
  a = b;
  // @ts-expect-error
  b = c;
  // @ts-expect-error
  a = c;
}

This will be minified down to e:break e;, but I think it can be entirely removed, right?

The alternative was to use an early return from a namespace, but technically, that's not allowed in TypeScript and it breaks prettier's parser. So, I'm using a block and break.