Description:
------------
The method ReflectionObject::getProperties() fails to return 
any dynamically-set properties of an object. The Reflection 
API is aware of them, because they appear in an export (as 
shown below) and are found by ReflectionObject::hasProperty(), 
but they do not appear in the array returned by getProperties
(). There is no "getDynamicProperties()" method, and so 
without specific documentation it stands to reason that 
getProperties() should return ALL of an object's visible 
properties, both compile-time and run-time.

Reproduce code:
---------------
class Foo
{
    public $bar;
}

$p = new Foo;
$p->baz = 4;

$r = new ReflectionObject( $p );
Reflection::export( $r );
print_r( $r->getProperties() );

Expected result:
----------------
Object of class [  class Foo ] {
  @@ /var/www/test.php 3-6

  - Constants [0] {
  }

  - Static properties [0] {
  }

  - Static methods [0] {
  }

  - Properties [1] {
    Property [  public $bar ]
  }

  - Dynamic properties [1] {
    Property [  public $baz ]
  }

  - Methods [0] {
  }
}

Array
(
    [0] => ReflectionProperty Object
        (
            [name] => bar
            [class] => Foo
        )
    [1] => ReflectionProperty Object
        (
            [name] => baz
            [class] => Foo
        )
)

Actual result:
--------------
Object of class [  class Foo ] {
  @@ /var/www/test.php 3-6

  - Constants [0] {
  }

  - Static properties [0] {
  }

  - Static methods [0] {
  }

  - Properties [1] {
    Property [  public $bar ]
  }

  - Dynamic properties [1] {
    Property [  public $baz ]
  }

  - Methods [0] {
  }
}

Array
(
    [0] => ReflectionProperty Object
        (
            [name] => bar
            [class] => Foo
        )
)