Merge "Silence static analyzer warnings about memory leaks"

class HiddenPointer {

 public:

  // Since we're doing such a good job of hiding it, the static analyzer

  // thinks that we're leaking this `malloc`. This is probably related to

  // https://bugs.llvm.org/show_bug.cgi?id=34198. NOLINTNEXTLINE

  explicit HiddenPointer(size_t size = 256) { Set(malloc(size)); }

  ~HiddenPointer() { Free(); }

  void* Get() { return reinterpret_cast<void*>(~ptr_); }