[Form] fix phpdoc of Form::hasErrors

src/Symfony/Component/Form/Form.php

@@ -770,18 +770,15 @@ class Form implements \IteratorAggregate, FormInterface
     }
 
     /**
-     * Returns whether or not there are errors.
+     * Returns whether there are errors associated with this form.
      *
-     * @return Boolean true if form is bound and not valid
+     * @return Boolean
      *
      * @deprecated Deprecated since version 2.1, to be removed in 2.3. Count
      *             {@link getErrors()} instead.
      */
     public function hasErrors()
     {
-        // Don't call isValid() here, as its semantics are slightly different
-        // Forms are not valid if their children are invalid, but
-        // hasErrors() returns only true if a form itself has errors
         return count($this->errors) > 0;
     }
 

src/Symfony/Component/Form/FormInterface.php

@@ -168,7 +168,7 @@ interface FormInterface extends \ArrayAccess, \Traversable, \Countable
     public function addError(FormError $error);
 
     /**
-     * Returns whether the form is valid.
+     * Returns whether the form and all children are valid.
      *
      * @return Boolean
      */