Regression from 5.0.0b12;

At "C:\Program Files\Unity 5.0.0b12\Editor\Data\PlaybackEngines\metrosupport\Managed\Patched" Boo.Lang.dll file's size has changed from 5.0.0b12;

User tries to run certification tests and it fails:
Supported APIs
Error Found: The supported APIs test detected the following errors:
API System.Reflection.MemberTypes in MSCORLIB, PUBLICKEYTOKEN=B77A5C561934E089 is not supported for this application type. Boo.Lang.dll calls this API.

Repro steps:
1. Run WACK on users attached project;