Improve contextual typing by generic rest parameter
Improve contextual typing by generic rest parameter

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