message: Fix divide by zero in DexAnnotation
  Summary: dividing by zero is undefined behavior. Avoid that.
diff: @@ -588,8 +588,10 @@ void DexAnnotationDirectory::calc_internals() {
  }
  }
  }
  + if (m_anno_count != 0) {
  m_viz = (double)cntviz / m_anno_count;
  }
  +}
  bool method_annotation_compare(std::pair<DexMethod*, DexAnnotationSet*> a,
  std::pair<DexMethod*, DexAnnotationSet*> b) {
  