Update test

[Cherry-picked d140083]

Author: noti0na1

scala2-library-cc/src/scala/collection/View.scala

@@ -156,12 +156,9 @@ object View extends IterableFactory[View] {
             new Filter(filter.underlying, a => filter.p(a) && p(a), isFlipped)
               .asInstanceOf[Filter[A]^{underlying, p}]
               // !!! asInstanceOf needed once paths were added, see path-patmat-should-be-pos.scala for minimization
-        //case filter: Filter[A]^{underlying} if filter.isFlipped == isFlipped =>
-        //  unsafeAssumeSeparate:
             // See filter-iterable.scala for a test where a variant of Filter
             // works without the unsafeAssumeSeparate. But it requires significant
             // changes compared to the version here. See also Filter in colltest5.CollectionStrawManCC5_1.
-        //    new Filter(filter.underlying, a => filter.p(a) && p(a), isFlipped)
         case _ => new Filter(underlying, p, isFlipped)
       }
   }

tests/neg-custom-args/captures/match.scala

@@ -12,7 +12,10 @@ def test =
     case b: B => b // error: (b: B) becomes B^{x} implicitly
 
   val y2: A^{x} = a match
-    case b: B => b // ok
+    case b: B =>
+      val bb: B^{b} = b
+      val aa: A^{a} = bb
+      b // ok
 
   val x3: AnyRef = a match
     case B(x2: AnyRef) => x2 // error: we lose some information about field x, but it still cannot be pure

tests/run-custom-args/captures/colltest5/CollectionStrawManCC5_1.scala

@@ -457,13 +457,12 @@ object CollectionStrawMan5 {
       def apply[A](underlying: Iterable[A]^, pp: A => Boolean, isFlipped: Boolean): Filter[A]^{underlying, pp} =
         underlying match
           case filter: Filter[A] =>
-            new Filter(filter.underlying, a => filter.p(a) && pp(a))
-              .asInstanceOf[Filter[A]^{underlying, pp}]
-            //unsafeAssumeSeparate:
+            unsafeAssumeSeparate:
+              new Filter(filter.underlying, a => filter.p(a) && pp(a))
+                .asInstanceOf[Filter[A]^{underlying, pp}]
               // See filter-iterable.scala for a test where a variant of Filter
               // works without the unsafeAssumeSeparate. But it requires significant
               // changes compared to the version here.
-              //new Filter(filter.underlying, a => filter.p(a) && pp(a))
           case _ => new Filter(underlying, pp)
 
     case class Partition[A](val underlying: Iterable[A]^, p: A => Boolean) {