Preserve probe-ness and const-ness in Output() and friends. (#3654)

Using `Output()` shouldn't drop important type information,
only override the specified direction to force alignment.

Until #3647 is addressed, use `cloneTypeFull` to get the expected behavior.
The cloned direction information is unnecessary but is
overridden by the coerced direction.

cc #3647.

Co-authored-by: Jack Koenig <koenig@sifive.com>