message: [XLA:CPU] Enable more dot tests
  None of those are failing at head.
diff: @@ -646,8 +646,6 @@ XLA_TYPED_TEST(DotOperationTest_F16F32F64CF64, GeneralMatMul) {
  {x_data.get(), y_data.get()}, this->error_spec_);
  }
  -#ifndef XLA_TEST_BACKEND_CPU
  -// TODO(b/74459949): failed on CPU on 2018-10-29.
  XLA_TYPED_TEST(DotOperationTest_F16F32F64CF64, GeneralMatMulR3LhsR2Rhs) {
  using T = TypeParam;
  @@ -681,7 +679,6 @@ XLA_TYPED_TEST(DotOperationTest_F16F32F64CF64, GeneralMatMulR3LhsR2Rhs) {
  this->error_spec_);
  }
  -// TODO(b/74459949): failed on CPU on 2018-10-29.
  XLA_TYPED_TEST(DotOperationTest_F16F32F64CF64, GeneralMatMulR2LhsR3Rhs) {
  using T = TypeParam;
  @@ -714,7 +711,6 @@ XLA_TYPED_TEST(DotOperationTest_F16F32F64CF64, GeneralMatMulR2LhsR3Rhs) {
  /*expected=*/{{1.0f, 2.0f}, {7.0f, 8.0f}}, {x_data.get(), y_data.get()},
  this->error_spec_);
  }
  -#endif // XLA_TEST_BACKEND_CPU
  XLA_TYPED_TEST(DotOperationTest_F16F32F64CF64, GeneralMatMulMultipleBatch) {
  using T = TypeParam;
  @@ -1376,7 +1372,7 @@ ENTRY SmallIntegerDot {
  EXPECT_TRUE(RunAndCompare(hlo_string, ErrorSpec{4e-3, 4e-3}));
  }
  -XLA_TEST_F(DotOperationTextTest, DISABLED_ON_CPU(GpuTransposeOutput)) {
  +XLA_TEST_F(DotOperationTextTest, GpuTransposeOutput) {
  absl::string_view hlo_string =
  R"(
  HloModule TransposeOutput
  