Add failing testcase where when d.ts file is in program, the files get emitted multiple times with --out setting
Add failing testcase where when d.ts file is in program, the files get emitted multiple times with --out setting

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