whether a conversion from one type to another is possible. r=darin sr=bz git-svn-id: svn://10.0.0.236/trunk@186204 18797224-902f-48f8-a5cc-f745e15eee43
whether a conversion from one type to another is possible. r=darin sr=bz git-svn-id: svn://10.0.0.236/trunk@186204 18797224-902f-48f8-a5cc-f745e15eee43