Add regression test
Add regression test

SaschaNaz/TypeScript,donaldpipowitch/TypeScript,kpreisser/TypeScript,Microsoft/TypeScript,donaldpipowitch/TypeScript,donaldpipowitch/TypeScript,kitsonk/TypeScript,weswigham/TypeScript,kitsonk/TypeScript,RyanCavanaugh/TypeScript,microsoft/TypeScript,RyanCavanaugh/TypeScript,SaschaNaz/TypeScript,SaschaNaz/TypeScript,kitsonk/TypeScript,Microsoft/TypeScript,kpreisser/TypeScript,alexeagle/TypeScript,weswigham/TypeScript,weswigham/TypeScript,nojvek/TypeScript,kpreisser/TypeScript,nojvek/TypeScript,nojvek/TypeScript,microsoft/TypeScript,minestarks/TypeScript,donaldpipowitch/TypeScript,SaschaNaz/TypeScript,microsoft/TypeScript,nojvek/TypeScript,alexeagle/TypeScript,minestarks/TypeScript,Microsoft/TypeScript,RyanCavanaugh/TypeScript,alexeagle/TypeScript,minestarks/TypeScript