Added a Code Analysis warning.
Added a Code Analysis warning.

dcastro/AutoFixture,sergeyshushlyapin/AutoFixture,sean-gilliam/AutoFixture,dcastro/AutoFixture,sbrockway/AutoFixture,AutoFixture/AutoFixture,hackle/AutoFixture,mrinaldi/AutoFixture,mrinaldi/AutoFixture,olegsych/AutoFixture,Pvlerick/AutoFixture,adamchester/AutoFixture,yuva2achieve/AutoFixture,zvirja/AutoFixture,amarant/AutoFixture,olegsych/AutoFixture,dlongest/AutoFixture,yuva2achieve/AutoFixture,sergeyshushlyapin/AutoFixture,sbrockway/AutoFixture,hackle/AutoFixture,adamchester/AutoFixture,StevenJiang2015/AutoFixture,amarant/AutoFixture,StevenJiang2015/AutoFixture,dlongest/AutoFixture