[BUG]: Incorrect return type hint for Phalcon\Db\Column::getSize()

[sergeyklay]

Current return type hint of the Phalcon\Db\Column::getSize implies that method must return a integer value:

cphalcon/phalcon/Db/Column.zep

Lines 272 to 277 in 5c34a6c

	/**
	* Integer column size
	*
	* @var int
	*/
	protected size = 0 { get };

But this method MAY return a string for enum columns:

use Phalcon\Db\Column;

$column = new Column('field_enum', [
    'type'          => Column::TYPE_ENUM,
    'isNumeric'     => false,
    'size'          => "'xs','s','m','l','xl','internal'",
    'default'       => null,
    'unsigned'      => false,
    'notNull'       => false,
    'autoIncrement' => false,
    'primary'       => false,
    'first'         => false,
    'after'         => 'field_decimal_default',
    'bindType'      => Column::BIND_PARAM_STR,
    'typeValues'    => 'c',
    'typeReference' => Column::TYPE_ENUM,
]);

var_dump($column->getSize()); // string

This leads to a fatal error:

PHP Fatal error:
Return value of Phalcon\Db\Column::getSize()
must be of the type int, string returned in Unknown on line 0

[sergeyklay]

Fixed in 4.0.x