Add test case generator for runtime functions

test/mjsunit/runtime-gen/liveeditreplacereftonestedfunction.js

Index: test/mjsunit/runtime-gen/liveeditreplacereftonestedfunction.js
diff --git a/test/mjsunit/runtime-gen/liveeditreplacereftonestedfunction.js b/test/mjsunit/runtime-gen/liveeditreplacereftonestedfunction.js
new file mode 100644
index 0000000000000000000000000000000000000000..55b01b1b184e8a8e09f5ec9315be43b9a5fa2359
--- /dev/null
+++ b/test/mjsunit/runtime-gen/liveeditreplacereftonestedfunction.js
@@ -0,0 +1,9 @@
+// Copyright 2014 the V8 project authors. All rights reserved.
+// AUTO-GENERATED BY tools/generate-runtime-tests.py, DO NOT MODIFY
+// Flags: --allow-natives-syntax --harmony
+var _parent_wrapper = new String('foo');
+var _orig_wrapper = new String('foo');
+var _subst_wrapper = new String('foo');
+try {
+%LiveEditReplaceRefToNestedFunction(_parent_wrapper, _orig_wrapper, _subst_wrapper);
+} catch(e) {}