remember to use the generator

Author: Azoy

stdlib/public/core/Collection.swift

@@ -929,7 +929,7 @@ extension Collection {
     using generator: inout T
   ) -> Element? {
     guard !isEmpty else { return nil }
-    let random = Int.random(in: 0 ..< count)
+    let random = Int.random(in: 0 ..< count, using: &generator)
     let idx = index(
       startIndex,
       offsetBy: random

stdlib/public/core/CollectionAlgorithms.swift

@@ -449,7 +449,7 @@ extension MutableCollection where Self : RandomAccessCollection {
     var amount = count
     var currentIndex = startIndex
     while amount > 1 {
-      let random = Int.random(in: 0 ..< amount)
+      let random = Int.random(in: 0 ..< amount, using: &generator)
       amount -= 1
       swapAt(
         currentIndex,