Should formula columns implicitly convert primitive arrays via unbox and/or widening? #1301

It is possible to support an implicit conversion of the following ideas:

public void foo(double[] values);

// implicit widening
emptyTable(1).update("F = foo(new float[] {})")
// implicit unboxing
emptyTable(1).update("F = foo(new Double[] {})")
// implicit unboxing and widening
emptyTable(1).update("F = foo(new Float[] {})")

The biggest concern is the need to allocate a destination array and convert on every invocation. The biggest benefit is the ease of use and the consistency with the other implicit conversions that DH performs on behalf of the user.