[Form] Guess currency field based on validator constraint

Author: enumag

Extension/Validator/ValidatorTypeGuesser.php

@@ -118,6 +118,9 @@ public function guessTypeForConstraint(Constraint $constraint)
             case 'Symfony\Component\Validator\Constraints\Country':
                 return new TypeGuess('country', array(), Guess::HIGH_CONFIDENCE);
 
+            case 'Symfony\Component\Validator\Constraints\Currency':
+                return new TypeGuess('currency', array(), Guess::HIGH_CONFIDENCE);
+
             case 'Symfony\Component\Validator\Constraints\Date':
                 return new TypeGuess('date', array('input' => 'string'), Guess::HIGH_CONFIDENCE);