HeapGrowthManager.overrideGrowHeapSize(growSize);
HeapGrowthManager.overrideGrowHeapSize(Extent.fromInt(growSize));
  public static void emergencyGrowHeap(int growSize) { // in bytes    // This can be undoable if the current thread doesn't cause 'em    // all to exit.    // if (VM.VerifyAssertions && growSize < 0) VM._assert(false);    HeapGrowthManager.overrideGrowHeapSize(growSize);  }