message: [XLA] Print more digits when hitting miscomparisons
  We should print enough digits to make the output unambiguous.
diff: @@ -238,19 +238,30 @@ float IsNan(half value) {
  }
  // Converts the given floating-point value to a string.
  -template <typename NativeT>
  -string FpValueToString(NativeT value) {
  - return absl::StrFormat("%8.4g", static_cast<double>(value));
  +string FpValueToString(bfloat16 value) {
  + return absl::StrFormat("%10.4g", static_cast<double>(value));
  }
  -template <>
  -string FpValueToString<complex64>(complex64 value) {
  - return absl::StrFormat("%8.4g + %8.4fi", value.real(), value.imag());
  +string FpValueToString(half value) {
  + return absl::StrFormat("%11.5g", static_cast<double>(value));
  }
  -template <>
  -string FpValueToString<complex128>(complex128 value) {
  - return absl::StrFormat("%8.4g + %8.4fi", value.real(), value.imag());
  +string FpValueToString(float value) {
  + return absl::StrFormat("%15.9g", static_cast<double>(value));
  +}
  +
  +string FpValueToString(double value) {
  + return absl::StrFormat("%24.17g", value);
  +}
  +
  +string FpValueToString(complex64 value) {
  + return absl::StrCat(FpValueToString(value.real()), " + ",
  + FpValueToString(value.imag()));
  +}
  +
  +string FpValueToString(complex128 value) {
  + return absl::StrCat(FpValueToString(value.real()), " + ",
  + FpValueToString(value.imag()));
  }
  // A wrapper of std::abs to include data types that are not supported by
  