Raised CI_Loader test coverage to 93%

Signed-off-by: dchill42 <dchill42@gmail.com>
diff --git a/tests/mocks/core/common.php b/tests/mocks/core/common.php
index b001074..9289b27 100644
--- a/tests/mocks/core/common.php
+++ b/tests/mocks/core/common.php
@@ -170,9 +170,10 @@
 
 if ( ! function_exists('is_loaded'))
 {
-	function is_loaded()
+	function &is_loaded()
 	{
-		throw new Exception('Bad Isolation: mock up environment');
+		$loaded = array();
+		return $loaded;
 	}
 }
 
@@ -190,4 +191,4 @@
 	{
 		return TRUE;
 	}
-}
+}
\ No newline at end of file