Merge pull request #1483 from tigrang/debugger-fix

Added case for `unknown` type.

Fixes #3966

lib/Cake/Test/Case/Utility/DebuggerTest.php

@@ -408,6 +408,11 @@ TEXT;
 false
 TEXT;
 		$this->assertTextEquals($expected, $result);
+
+		$file = fopen('php://output', 'w');
+		fclose($file);
+		$result = Debugger::exportVar($file);
+		$this->assertTextEquals('unknown', $result);
 	}
 
 /**

lib/Cake/Utility/Debugger.php

@@ -500,6 +500,8 @@ class Debugger {
 				return strtolower(gettype($var));
 			case 'null':
 				return 'null';
+			case 'unknown':
+				return 'unknown';
 			default:
 				return self::_object($var, $depth - 1, $indent + 1);
 		}