makeBreak(label) {
    const forkContext = this.forkContext;

    if (!forkContext.reachable) {
      return;
    }

    const context = getBreakContext(this, label);

    if (context) {
      context.brokenForkContext.add(forkContext.head);
    }

    /* c8 ignore next */
    forkContext.replaceHead(forkContext.makeUnreachable(-1, -1));
  }
Makes a path for a `break` statement.

It registers the head segment to a context of `break`.
It makes new unreachable segment, then it set the head with the segment.
@param {string} label A label of the break statement.
@returns {void}