Seq module scope

[TysonMN]

I would prefer if the Seq module had internal scope. Currently it has public scope.

fsharp-hedgehog/src/Hedgehog/Shrink.fs

Lines 3 to 17 in f346f77

	module Seq =
	let cons (x : 'a) (xs : seq<'a>) : seq<'a> =
	seq {
	yield x
	yield! xs
	}
	let consNub (x : 'a) (ys0 : seq<'a>) : seq<'a> =
	match Seq.tryHead ys0 with
	| None -> Seq.singleton x
	| Some y ->
	if x = y then
	ys0
	else
	cons x ys0

[moodmosaic]

Yes, it ought to be internal. I can't remember why we've declared it as public. Feel free to change it to internal.

(Besides that I can't remember why it's public, I also can't find a reason for having it public. So, internal would be better.)