message: Changed null checks in test. Removed verifier pointer usage
diff: @@ -2319,7 +2319,6 @@ void EvolutionTest() {
  std::string schemas[NUM_VERSIONS];
  std::string jsonfiles[NUM_VERSIONS];
  std::vector<uint8_t> binaries[NUM_VERSIONS];
  - flatbuffers::Verifier *verifiers[NUM_VERSIONS];
  flatbuffers::IDLOptions idl_opts;
  idl_opts.lang_to_generate |= flatbuffers::IDLOptions::kBinary;
  @@ -2341,26 +2340,25 @@ void EvolutionTest() {
  auto buf = parser.builder_.GetBufferPointer();
  binaries[i].reserve(bufLen);
  std::copy(buf, buf + bufLen, std::back_inserter(binaries[i]));
  -
  - verifiers[i] = new flatbuffers::Verifier(&binaries[i].front(), bufLen);
  }
  // Assert that all the verifiers for the different schema versions properly verify any version data.
  for (int i = 0; i < NUM_VERSIONS; ++i) {
  - TEST_ASSERT(Evolution::V1::VerifyRootBuffer(*verifiers[i]));
  - TEST_ASSERT(Evolution::V2::VerifyRootBuffer(*verifiers[i]));
  + flatbuffers::Verifier verifier(&binaries[i].front(), binaries[i].size());
  + TEST_ASSERT(Evolution::V1::VerifyRootBuffer(verifier));
  + TEST_ASSERT(Evolution::V2::VerifyRootBuffer(verifier));
  }
  // Test backwards compatibility by reading old data with an evolved schema.
  auto root_v1_viewed_from_v2 = Evolution::V2::GetRoot(&binaries[0].front());
  // field 'j' is new in version 2, so it should be null.
  - TEST_EQ(root_v1_viewed_from_v2->j(), NULL);
  + TEST_ASSERT(nullptr == root_v1_viewed_from_v2->j());
  // field 'k' is new in version 2 with a default of 56.
  TEST_EQ(root_v1_viewed_from_v2->k(), 56);
  // field 'c' of 'TableA' is new in version 2, so it should be null.
  - TEST_EQ(root_v1_viewed_from_v2->e()->c(), NULL);
  + TEST_ASSERT(nullptr == root_v1_viewed_from_v2->e()->c());
  // 'TableC' was added to field 'c' union in version 2, so it should be null.
  - TEST_EQ(root_v1_viewed_from_v2->c_as_TableC(), NULL);
  + TEST_ASSERT(nullptr == root_v1_viewed_from_v2->c_as_TableC());
  // The field 'c' union should be of type 'TableB' regardless of schema version
  TEST_ASSERT(root_v1_viewed_from_v2->c_type() == Evolution::V2::Union::TableB);
  // The field 'f' was renamed to 'ff' in version 2, it should still be readable.
  