Fix access of disposed object
Fix access of disposed object

CyrusNajmabadi/roslyn,weltkante/roslyn,mavasani/roslyn,jasonmalinowski/roslyn,shyamnamboodiripad/roslyn,CyrusNajmabadi/roslyn,mavasani/roslyn,CyrusNajmabadi/roslyn,jasonmalinowski/roslyn,weltkante/roslyn,bartdesmet/roslyn,dotnet/roslyn,weltkante/roslyn,shyamnamboodiripad/roslyn,jasonmalinowski/roslyn,shyamnamboodiripad/roslyn,dotnet/roslyn,dotnet/roslyn,bartdesmet/roslyn,bartdesmet/roslyn,mavasani/roslyn