public function testHierarchyMethodMerge()
 {
     list($ns, $classes, $map) = ClassBuilder::i()->register('
         class Foo {
             /** :big = true; */
             public function pants() {}
         }
         class Bar extends Foo {
             /** :whoop = true; */
             public function pants() {}
         }
     ');
     $hierarchy = $this->parser->parseHierarchy($map['Bar']);
     $expected = ['big' => true, 'whoop' => true];
     $this->assertEquals($expected, $hierarchy->methods['pants']);
 }