Refactor to make failure messages more consistent
Refactor to make failure messages more consistent

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