1..33
# __construct()
 -  takes a sfValidator as its first argument
 -  can take an array of sfValidatorError as its second argument
# ->addError() ->getErrors()
 -  adds an error to the error schema
# embedded errors
 -  adds an error to the error schema
 -  adds an error to the error schema
 -  adds an error to the error schema
 -  adds an error to the error schema
 -  adds an error to the error schema
# ->addErrors()
 -  adds an array of errors to the current error
 -  merges a sfValidatorErrorSchema to the current error
# ->getGlobalErrors()
 -  returns all globals/non named errors
# ->getNamedErrors()
 -  returns all named errors
# ->getValue()
 -  always returns null
# ->getArguments()
 -  always returns an empty array
 -  always returns an empty array
# ->getMessageFormat()
 -  always returns an empty string
# ->getMessage()
 -  returns the error message string
# ->getCode()
 -  returns the error code
# implements Countable
 -  implements Countable
# implements Iterator
 - sfValidatorErrorSchema implements the Iterator interface
# implements ArrayAccess
 - sfValidatorErrorSchema implements the ArrayAccess interface
 - sfValidatorErrorSchema implements the ArrayAccess interface
 - sfValidatorErrorSchema implements the ArrayAccess interface
 - sfValidatorErrorSchema implements the ArrayAccess interface
 - sfValidatorErrorSchema implements the ArrayAccess interface
 - sfValidatorErrorSchema implements the ArrayAccess interface
# implements Serializable
 - sfValidatorErrorSchema implements Serializable
 - sfValidatorErrorSchema implements Serializable
 - sfValidatorErrorSchema implements Serializable
 - sfValidatorErrorSchema implements Serializable
 - sfValidatorErrorSchema implements Serializable
 - sfValidatorErrorSchema implements Serializable
 - sfValidatorErrorSchema implements Serializable
# Looks like everything went fine.