--- /dev/null
+diff --git a/Foo.php b/Foo.php
+index abcdefg..abcdefh 100644
+--- a/Foo.php
++++ b/Foo.php
+@@ -20,4 +20,5 @@ class Foo
+ const ONE = 1;
+ const TWO = 2;
++ const THREE = 3;
+ const FOUR = 4;
+
+@@ -320,4 +320,5 @@ class Foo
+ const A = 'A';
+ const B = 'B';
++ const C = 'C';
+ const D = 'D';
+
+@@ -600,4 +600,5 @@ class Foo
+ public function doSomething() {
+
++ return 'foo';
+ }