Revert "Hide ofSize even more from scala3 when using tasty" (#119)

This reverts commit 3138763.

Co-authored-by: Samuel Chassot <[email protected]>

data-structures/uarray/UArrayExample.scala

@@ -88,20 +88,16 @@ object UArrayExample:
   end UArray
 
   object UArray:
-    @extern @ignore // used because `new Array[T]` leaks out of @extern due to some compiler magic
-    def _ofSize[T: ClassTag](size: Int): UArray[T] = {
+    @extern
+    def ofSize[T: ClassTag](size: Int): UArray[T] = {
+      require(0 <= size)
       @ghost val definedNot = Array.fill(size)(false)
       given ct: realClassTag[T] = summon[ClassTag[T]].real
       val content = new Array[T](size)
       UArray[T](content, size, definedNot)
-    }
-
-    @extern
-    def ofSize[T: ClassTag](size: Int): UArray[T] = {
-      require(0 <= size)
-      _ofSize[T](size)
     }.ensuring(res => res.size == size)
 
+
   end UArray
 
   def arr3[T: ClassTag](mk: Int => T): Array[T] =