Fixes TypeError for classes in FF strict mode.

"Due to the new semantics of JavaScript's strict mode, CoffeeScript no longer guarantees that constructor functions have names in all runtimes. See #2052 for discussion."

jashkenas/coffeescript#2052

Author: bfanger

src/CoffeeScript/Nodes.php

@@ -62,7 +62,7 @@ static function utility_extends()
     . 'function ctor() { '
     .   'this.constructor = child; '
     . '} '
-    . 'ctor.prototype = parent.prototype; child.prototype = new ctor; child.__super__ = parent.prototype; '
+    . 'ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; '
     . 'return child; '
     . '}';
   }

src/CoffeeScript/yy/Class.php

@@ -121,11 +121,6 @@ function compile_node($options)
       array_unshift($this->body->expressions, $this->ctor);
     }
 
-    if ($decl)
-    {
-      array_unshift($this->body->expressions, yy('Assign', yy('Value', yy('Literal', $name), array(yy('Access', yy('Literal', 'name')))), yy('Literal', "'{$name}'")));
-    }
-
     $this->body->expressions[] = $lname;
     $this->body->expressions = array_merge($this->directives, $this->body->expressions);