chore: add transparent modifier to already assumed transparent types

[hamzaremmal]

dotc already assumes that some of the types in stdlib are transparent. We now drop the assumption and add the transparent modifier to the source.

For reference, the list of assumed transparent types:

scala3/compiler/src/dotty/tools/dotc/core/Definitions.scala

Lines 2051 to 2092 in 5ac8a32

	@tu lazy val assumedTransparentNames: Map[Name, Set[Symbol]] =
	// add these for now, until we had a chance to retrofit 2.13 stdlib
	// we should do a more through sweep through it then.
	val strs = Map(
	"Any" -> Set("scala"),
	"AnyVal" -> Set("scala"),
	"Matchable" -> Set("scala"),
	"Product" -> Set("scala"),
	"Object" -> Set("java.lang"),
	"Comparable" -> Set("java.lang"),
	"Serializable" -> Set("java.io"),
	"BitSetOps" -> Set("scala.collection"),
	"IndexedSeqOps" -> Set("scala.collection", "scala.collection.mutable", "scala.collection.immutable"),
	"IterableOnceOps" -> Set("scala.collection"),
	"IterableOps" -> Set("scala.collection"),
	"LinearSeqOps" -> Set("scala.collection", "scala.collection.immutable"),
	"MapOps" -> Set("scala.collection", "scala.collection.mutable", "scala.collection.immutable"),
	"SeqOps" -> Set("scala.collection", "scala.collection.mutable", "scala.collection.immutable"),
	"SetOps" -> Set("scala.collection", "scala.collection.mutable", "scala.collection.immutable"),
	"SortedMapOps" -> Set("scala.collection", "scala.collection.mutable", "scala.collection.immutable"),
	"SortedOps" -> Set("scala.collection"),
	"SortedSetOps" -> Set("scala.collection", "scala.collection.mutable", "scala.collection.immutable"),
	"StrictOptimizedIterableOps" -> Set("scala.collection"),
	"StrictOptimizedLinearSeqOps" -> Set("scala.collection"),
	"StrictOptimizedMapOps" -> Set("scala.collection", "scala.collection.immutable"),
	"StrictOptimizedSeqOps" -> Set("scala.collection", "scala.collection.immutable"),
	"StrictOptimizedSetOps" -> Set("scala.collection", "scala.collection.immutable"),
	"StrictOptimizedSortedMapOps" -> Set("scala.collection", "scala.collection.immutable"),
	"StrictOptimizedSortedSetOps" -> Set("scala.collection", "scala.collection.immutable"),
	"ArrayDequeOps" -> Set("scala.collection.mutable"),
	"DefaultSerializable" -> Set("scala.collection.generic"),
	"IsIterable" -> Set("scala.collection.generic"),
	"IsIterableLowPriority" -> Set("scala.collection.generic"),
	"IsIterableOnce" -> Set("scala.collection.generic"),
	"IsIterableOnceLowPriority" -> Set("scala.collection.generic"),
	"IsMap" -> Set("scala.collection.generic"),
	"IsSeq" -> Set("scala.collection.generic"))
	strs.map { case (simple, pkgs) => (
	simple.toTypeName,
	pkgs.map(pkg => staticRef(pkg.toTermName, isPackage = true).symbol.moduleClass)
	)
	}

[natsukagami]

Checked to have all removed instances in #23105

[hamzaremmal]

Ugh, I should have changed the target of this PR before merging the stdlib...
I think recreating branch with the same name and then changing the target would work.