Fix the crash found while compiling src/compiler
Fix the crash found while compiling src/compiler

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