message: Fix travis ci
  Summary: .
diff: #include "PostLowering.h"
  -class NoopPostLowering {
  +class NoopPostLowering : public PostLowering {
  + public:
  void gather_components(std::vector<DexString*>&,
  std::vector<DexType*>&,
  std::vector<DexFieldRef*>&,
  