Extracted the common "data_class" option explanation for data-related…

… types

reference/forms/types/date.rst

@@ -129,14 +129,7 @@ The ``DateTime`` classes are treated as immutable objects.
 
 .. include:: /reference/forms/types/options/compound_type.rst.inc
 
-data_class
-~~~~~~~~~~
-
-**default**: ``null``
-
-The internal normalized representation of this type is an array, not a ``\DateTime``
-object. Therefore, the ``data_class`` option is initialized to ``null`` to avoid
-the ``FormType`` object from initializing it to ``\DateTime``.
+.. include:: /reference/forms/types/options/data_class_date.rst.inc
 
 error_bubbling
 ~~~~~~~~~~~~~~

reference/forms/types/datetime.rst

@@ -15,6 +15,11 @@ the data can be a ``DateTime`` object, a string, a timestamp or an array.
 +----------------------+-----------------------------------------------------------------------------+
 | Rendered as          | single text box or three select fields                                      |
 +----------------------+-----------------------------------------------------------------------------+
+| Overridden Options   | - `by_reference`_                                                           |
+|                      | - `compound`_                                                               |
+|                      | - `data_class`_                                                             |
+|                      | - `error_bubbling`_                                                         |
++----------------------+-----------------------------------------------------------------------------+
 | Options              | - `date_format`_                                                            |
 |                      | - `date_widget`_                                                            |
 |                      | - `days`_                                                                   |
@@ -46,6 +51,25 @@ the data can be a ``DateTime`` object, a string, a timestamp or an array.
 | Class                | :class:`Symfony\\Component\\Form\\Extension\\Core\\Type\\DateTimeType`      |
 +----------------------+-----------------------------------------------------------------------------+
 
+Overridden Options
+------------------
+
+by_reference
+~~~~~~~~~~~~
+
+**default**: ``false``
+
+The ``DateTime`` classes are treated as immutable objects.
+
+.. include:: /reference/forms/types/options/compound_type.rst.inc
+
+.. include:: /reference/forms/types/options/data_class_date.rst.inc
+
+error_bubbling
+~~~~~~~~~~~~~~
+
+**default**: ``false``
+
 Field Options
 -------------
 

reference/forms/types/options/data_class_date.rst.inc

@@ -0,0 +1,8 @@
+data_class
+~~~~~~~~~~
+
+**default**: ``null``
+
+The internal normalized representation of this type is an array, not a ``\DateTime``
+object. Therefore, the ``data_class`` option is initialized to ``null`` to avoid
+the ``FormType`` object from initializing it to ``\DateTime``.

reference/forms/types/time.rst

@@ -143,14 +143,7 @@ The ``DateTime`` classes are treated as immutable objects.
 
 .. include:: /reference/forms/types/options/compound_type.rst.inc
 
-data_class
-~~~~~~~~~~
-
-**default**: ``null``
-
-The internal normalized representation of this type is an array, not a ``\DateTime``
-object. Therefore, the ``data_class`` option is initialized to ``null`` to avoid
-the ``FormType`` object from initializing it to ``\DateTime``.
+.. include:: /reference/forms/types/options/data_class_date.rst.inc
 
 error_bubbling
 ~~~~~~~~~~~~~~