// (9,9): error CS0029: Cannot implicitly convert type 'System.Collections.Generic.IEnumerable<<anonymous type: int E>>' to 'int'
// c.Select(o => new { E = F });
Diagnostic(ErrorCode.ERR_NoImplicitConv,"c.Select(o => new { E = F })").WithArguments("System.Collections.Generic.IEnumerable<<anonymous type: int E>>","int").WithLocation(9,9)