Make custom version of the test

In dotty bootstapped the assert is inlined

Author: nicolasstucki

tests/pos/i2104.decompiled renamed to tests/pos/i2104b.decompiled

@@ -0,0 +1,16 @@
+case class Pair[A, B](_1: A, _2: B)
+
+trait Cons[+H, +T]
+
+object Cons {
+  def apply[H, T](h: H, t: T): Cons[H, T] = ???
+  def unapply[H, T](t: Cons[H, T]): Option[Pair[H, T]] = ???
+}
+
+object Test {
+  def main(args: Array[String]): Unit = {
+    Cons(Option(1), None) match {
+      case Cons(Some(i), None) =>
+    }
+  }
+}