Fix tensor_py.h (#17195)

* fix tensor_py,test=develop

* change class name,test=develop

paddle/fluid/pybind/tensor_py.h

@@ -431,14 +431,14 @@ inline void PyCUDAPinnedTensorSetFromArray(
 namespace details {
 
 template <typename T>
-constexpr bool IsValidDTypeToPyArray() {
-  return false;
-}
+struct ValidDTypeToPyArrayChecker {
+  static constexpr bool kValue = false;
+};
 
 #define DECLARE_VALID_DTYPE_TO_PY_ARRAY(type) \
   template <>                                 \
-  constexpr bool IsValidDTypeToPyArray<type>() { \
-    return true;                                 \
+  struct ValidDTypeToPyArrayChecker<type> {   \
+    static constexpr bool kValue = true;      \
   }
 
 DECLARE_VALID_DTYPE_TO_PY_ARRAY(platform::float16);
@@ -457,7 +457,8 @@ inline std::string TensorDTypeToPyDTypeStr(
     if (std::is_same<T, platform::float16>::value) {                        \
       return "e";                                                           \
     } else {                                                                \
-      PADDLE_ENFORCE(IsValidDTypeToPyArray<T>,                          \
+      constexpr auto kIsValidDType = ValidDTypeToPyArrayChecker<T>::kValue; \
+      PADDLE_ENFORCE(kIsValidDType,                                         \
                      "This type of tensor cannot be expose to Python");     \
       return py::format_descriptor<T>::format();                            \
     }                                                                       \