void markAllFilesDirty(@NotNull @NonNls Object reason) {
    assertAllowModifications();
    synchronized (myDocumentToStatusMap) {
      if (!myDocumentToStatusMap.isEmpty()) {
        log("Mark all dirty: ", reason);
      }
      myDocumentToStatusMap.clear();
    }
  }
void markAllFilesDirty(@NotNull @NonNls Object reason)