Fix incorrect order of arguments when added out of sequence.

Fixes #3385

Author: markstory

lib/Cake/Console/ConsoleOptionParser.php

@@ -345,6 +345,7 @@ public function addArgument($name, $params = array()) {
 			$arg = new ConsoleInputArgument($options);
 		}
 		$this->_args[$index] = $arg;
+		ksort($this->_args);
 		return $this;
 	}
 

lib/Cake/Test/Case/Console/ConsoleOptionParserTest.php

@@ -314,10 +314,29 @@ public function testAddArgumentObject() {
 		$parser = new ConsoleOptionParser('test', false);
 		$parser->addArgument(new ConsoleInputArgument('test'));
 		$result = $parser->arguments();
-		$this->assertEquals(1, count($result));
+		$this->assertCount(1, $result);
 		$this->assertEquals('test', $result[0]->name());
 	}
 
+/**
+ * Test adding arguments out of order.
+ *
+ * @return void
+ */
+	public function testAddArgumentOutOfOrder() {
+		$parser = new ConsoleOptionParser('test', false);
+		$parser->addArgument('name', array('index' => 1, 'help' => 'first argument'))
+			->addArgument('bag', array('index' => 2, 'help' => 'second argument'))
+			->addArgument('other', array('index' => 0, 'help' => 'Zeroth argument'));
+
+		$result = $parser->arguments();
+		$this->assertCount(3, $result);
+		$this->assertEquals('other', $result[0]->name());
+		$this->assertEquals('name', $result[1]->name());
+		$this->assertEquals('bag', $result[2]->name());
+		$this->assertSame(array(0, 1, 2), array_keys($result));
+	}
+
 /**
  * test overwriting positional arguments.
  *