private BoundExpression TypeTestAndCopyToTemp(BoundExpression input, BoundExpression temp)
{
// invariant: the input has already been tested, to ensure it is not null
if (input == temp)
{
return(_factory.Literal(true));
}
Debug.Assert(temp.Kind == BoundKind.Local);
return(LocalRewriter.MakeDeclarationPattern(_factory.Syntax, input, temp, requiresNullTest: false));
}
