Crash from mapping on `NonEmptyTuple`.toList

## Compiler version

v3.0.1-RC1
## Minimized code

```Scala
  def bar(t: Any): Int = 1
  def foo(t: AnyRef): Unit =
    t.asInstanceOf[NonEmptyTuple].toList.map(bar)
```

## Output (click arrow to expand)
<details>

```scala
java.lang.AssertionError: assertion failed: [33m[0m [35m<none>[0m
	at scala.runtime.Scala3RunTime$.assertFailed(Scala3RunTime.scala:8)
	at dotty.tools.dotc.transform.Erasure$Typer.typedSelect(Erasure.scala:721)
	at dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2665)
	at dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2757)
	at dotty.tools.dotc.typer.ReTyper.typedUnadapted(ReTyper.scala:118)
	at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2823)
	at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2827)
	at dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2943)
	at dotty.tools.dotc.transform.Erasure$Typer.typedTypeApply(Erasure.scala:815)
	at dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2714)
	at dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2758)
	at dotty.tools.dotc.typer.ReTyper.typedUnadapted(ReTyper.scala:118)
	at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2823)
	at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2827)
	at dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2943)
	at dotty.tools.dotc.transform.Erasure$Typer.typedApply(Erasure.scala:837)
	at dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2695)
	at dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2758)
	at dotty.tools.dotc.typer.ReTyper.typedUnadapted(ReTyper.scala:118)
	at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2823)
	at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2827)
	at dotty.tools.dotc.typer.Typer.traverse$1(Typer.scala:2876)
	at dotty.tools.dotc.typer.Typer.typedStats(Typer.scala:2899)
	at dotty.tools.dotc.transform.Erasure$Typer.typedStats(Erasure.scala:1053)
	at dotty.tools.dotc.typer.Typer.typedBlockStats(Typer.scala:1023)
	at dotty.tools.dotc.typer.Typer.typedBlock(Typer.scala:1027)
	at dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2703)
	at dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2758)
	at dotty.tools.dotc.typer.ReTyper.typedUnadapted(ReTyper.scala:118)
	at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2823)
	at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2827)
	at dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2943)
	at dotty.tools.dotc.typer.Typer.$anonfun$34(Typer.scala:2168)
	at dotty.tools.dotc.typer.PrepareInlineable$.dropInlineIfError(PrepareInlineable.scala:225)
	at dotty.tools.dotc.typer.Typer.typedDefDef(Typer.scala:2168)
	at dotty.tools.dotc.transform.Erasure$Typer.typedDefDef(Erasure.scala:955)
	at dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2672)
	at dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2757)
	at dotty.tools.dotc.typer.ReTyper.typedUnadapted(ReTyper.scala:118)
	at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2823)
	at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2827)
	at dotty.tools.dotc.typer.Typer.traverse$1(Typer.scala:2849)
	at dotty.tools.dotc.typer.Typer.typedStats(Typer.scala:2899)
	at dotty.tools.dotc.transform.Erasure$Typer.typedStats(Erasure.scala:1053)
	at dotty.tools.dotc.typer.Typer.typedClassDef(Typer.scala:2354)
	at dotty.tools.dotc.transform.Erasure$Typer.typedClassDef(Erasure.scala:1043)
	at dotty.tools.dotc.typer.Typer.typedTypeOrClassDef$2(Typer.scala:2683)
	at dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2687)
	at dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2757)
	at dotty.tools.dotc.typer.ReTyper.typedUnadapted(ReTyper.scala:118)
	at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2823)
	at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2827)
	at dotty.tools.dotc.typer.Typer.traverse$1(Typer.scala:2849)
	at dotty.tools.dotc.typer.Typer.typedStats(Typer.scala:2899)
	at dotty.tools.dotc.transform.Erasure$Typer.typedStats(Erasure.scala:1053)
	at dotty.tools.dotc.typer.Typer.typedPackageDef(Typer.scala:2477)
	at dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2728)
	at dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2758)
	at dotty.tools.dotc.typer.ReTyper.typedUnadapted(ReTyper.scala:118)
	at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2823)
	at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2827)
	at dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2943)
	at dotty.tools.dotc.transform.Erasure.run(Erasure.scala:132)
	at dotty.tools.dotc.core.Phases$Phase.runOn$$anonfun$1(Phases.scala:303)
	at scala.collection.immutable.List.map(List.scala:246)
	at dotty.tools.dotc.core.Phases$Phase.runOn(Phases.scala:304)
	at dotty.tools.dotc.Run.runPhases$4$$anonfun$4(Run.scala:205)
	at scala.runtime.function.JProcedure1.apply(JProcedure1.java:15)
	at scala.runtime.function.JProcedure1.apply(JProcedure1.java:10)
	at scala.collection.ArrayOps$.foreach$extension(ArrayOps.scala:1323)
	at dotty.tools.dotc.Run.runPhases$5(Run.scala:216)
	at dotty.tools.dotc.Run.compileUnits$$anonfun$1(Run.scala:224)
	at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.scala:18)
	at dotty.tools.dotc.util.Stats$.maybeMonitored(Stats.scala:67)
	at dotty.tools.dotc.Run.compileUnits(Run.scala:231)
	at dotty.tools.dotc.Run.compileSources(Run.scala:166)
	at dotty.tools.dotc.Run.compile(Run.scala:150)
	at dotty.tools.dotc.Driver.doCompile(Driver.scala:39)
	at dotty.tools.xsbt.CompilerBridgeDriver.run(CompilerBridgeDriver.java:88)
	at dotty.tools.xsbt.CompilerBridge.run(CompilerBridge.java:22)
	at sbt.internal.inc.AnalyzingCompiler.compile(AnalyzingCompiler.scala:91)
	at sbt.internal.inc.MixedAnalyzingCompiler.$anonfun$compile$7(MixedAnalyzingCompiler.scala:186)
	at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
	at sbt.internal.inc.MixedAnalyzingCompiler.timed(MixedAnalyzingCompiler.scala:241)
	at sbt.internal.inc.MixedAnalyzingCompiler.$anonfun$compile$4(MixedAnalyzingCompiler.scala:176)
	at sbt.internal.inc.MixedAnalyzingCompiler.$anonfun$compile$4$adapted(MixedAnalyzingCompiler.scala:157)
	at sbt.internal.inc.JarUtils$.withPreviousJar(JarUtils.scala:239)
	at sbt.internal.inc.MixedAnalyzingCompiler.compileScala$1(MixedAnalyzingCompiler.scala:157)
	at sbt.internal.inc.MixedAnalyzingCompiler.compile(MixedAnalyzingCompiler.scala:204)
	at sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileInternal$1(IncrementalCompilerImpl.scala:528)
	at sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileInternal$1$adapted(IncrementalCompilerImpl.scala:528)
	at sbt.internal.inc.Incremental$.$anonfun$apply$5(Incremental.scala:174)
	at sbt.internal.inc.Incremental$.$anonfun$apply$5$adapted(Incremental.scala:172)
	at sbt.internal.inc.Incremental$$anon$2.run(Incremental.scala:457)
	at sbt.internal.inc.IncrementalCommon$CycleState.next(IncrementalCommon.scala:116)
	at sbt.internal.inc.IncrementalCommon$$anon$1.next(IncrementalCommon.scala:56)
	at sbt.internal.inc.IncrementalCommon$$anon$1.next(IncrementalCommon.scala:52)
	at sbt.internal.inc.IncrementalCommon.cycle(IncrementalCommon.scala:261)
	at sbt.internal.inc.Incremental$.$anonfun$incrementalCompile$8(Incremental.scala:412)
	at sbt.internal.inc.Incremental$.withClassfileManager(Incremental.scala:499)
	at sbt.internal.inc.Incremental$.incrementalCompile(Incremental.scala:399)
	at sbt.internal.inc.Incremental$.apply(Incremental.scala:166)
	at sbt.internal.inc.IncrementalCompilerImpl.compileInternal(IncrementalCompilerImpl.scala:528)
	at sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileIncrementally$1(IncrementalCompilerImpl.scala:482)
	at sbt.internal.inc.IncrementalCompilerImpl.handleCompilationError(IncrementalCompilerImpl.scala:332)
	at sbt.internal.inc.IncrementalCompilerImpl.compileIncrementally(IncrementalCompilerImpl.scala:420)
	at sbt.internal.inc.IncrementalCompilerImpl.compile(IncrementalCompilerImpl.scala:137)
	at sbt.Defaults$.compileIncrementalTaskImpl(Defaults.scala:2346)
	at sbt.Defaults$.$anonfun$compileIncrementalTask$2(Defaults.scala:2303)
	at sbt.internal.io.Retry$.apply(Retry.scala:46)
	at sbt.internal.io.Retry$.apply(Retry.scala:28)
	at sbt.internal.io.Retry$.apply(Retry.scala:23)
	at sbt.internal.server.BspCompileTask$.compute(BspCompileTask.scala:31)
	at sbt.Defaults$.$anonfun$compileIncrementalTask$1(Defaults.scala:2299)
	at scala.Function1.$anonfun$compose$1(Function1.scala:49)
	at sbt.internal.util.$tilde$greater.$anonfun$$u2219$1(TypeFunctions.scala:62)
	at sbt.std.Transform$$anon$4.work(Transform.scala:68)
	at sbt.Execute.$anonfun$submit$2(Execute.scala:282)
	at sbt.internal.util.ErrorHandling$.wideConvert(ErrorHandling.scala:23)
	at sbt.Execute.work(Execute.scala:291)
	at sbt.Execute.$anonfun$submit$1(Execute.scala:282)
	at sbt.ConcurrentRestrictions$$anon$4.$anonfun$submitValid$1(ConcurrentRestrictions.scala:265)
	at sbt.CompletionService$$anon$2.call(CompletionService.scala:64)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)

exception while typing {
  val Tuple_this: NonEmptyTuple = t.asInstanceOf[NonEmptyTuple]
  (
    Tuple_this.productIterator.toList.asInstanceOf[
      scala.collection.immutable.List[Tuple.Union[(Tuple_this : Product)]]
    ]
  :scala.collection.immutable.List[Tuple.Union[(Tuple_this : Product)]])
}.map of class class dotty.tools.dotc.ast.Trees$Select # -1
exception while typing {
  val Tuple_this: NonEmptyTuple = t.asInstanceOf[NonEmptyTuple]
  (
    Tuple_this.productIterator.toList.asInstanceOf[
      scala.collection.immutable.List[Tuple.Union[(Tuple_this : Product)]]
    ]
  :scala.collection.immutable.List[Tuple.Union[(Tuple_this : Product)]])
}.map[Int] of class class dotty.tools.dotc.ast.Trees$TypeApply # -1
exception while typing {
  val Tuple_this: NonEmptyTuple = t.asInstanceOf[NonEmptyTuple]
  (
    Tuple_this.productIterator.toList.asInstanceOf[
      scala.collection.immutable.List[Tuple.Union[(Tuple_this : Product)]]
    ]
  :scala.collection.immutable.List[Tuple.Union[(Tuple_this : Product)]])
}.map[Int](
  {
    def $anonfun(t: Any): Int = bar(t)
    closure($anonfun)
  }
) of class class dotty.tools.dotc.ast.Trees$Apply # -1
exception while typing {
  {
    val Tuple_this: NonEmptyTuple = t.asInstanceOf[NonEmptyTuple]
    (
      Tuple_this.productIterator.toList.asInstanceOf[
        scala.collection.immutable.List[Tuple.Union[(Tuple_this : Product)]]
      ]
    :scala.collection.immutable.List[Tuple.Union[(Tuple_this : Product)]])
  }.map[Int](
    {
      def $anonfun(t: Any): Int = bar(t)
      closure($anonfun)
    }
  )
  ()
} of class class dotty.tools.dotc.ast.Trees$Block # -1
exception while typing def foo(t: AnyRef): Unit = 
  {
    {
      val Tuple_this: NonEmptyTuple = t.asInstanceOf[NonEmptyTuple]
      (
        Tuple_this.productIterator.toList.asInstanceOf[
          scala.collection.immutable.List[Tuple.Union[(Tuple_this : Product)]]
        ]
      :scala.collection.immutable.List[Tuple.Union[(Tuple_this : Product)]])
    }.map[Int](
      {
        def $anonfun(t: Any): Int = bar(t)
        closure($anonfun)
      }
    )
    ()
  } of class class dotty.tools.dotc.ast.Trees$DefDef # -1
exception while typing @scala.annotation.internal.SourceFile("src/main/scala/main.scala") final module 
  class
 main$package$() extends Object() {
  private def writeReplace(): AnyRef = 
    new scala.runtime.ModuleSerializationProxy(classOf[main$package.type])
  def bar(t: Any): Int = 1
  def foo(t: AnyRef): Unit = 
    {
      {
        val Tuple_this: NonEmptyTuple = t.asInstanceOf[NonEmptyTuple]
        (
          Tuple_this.productIterator.toList.asInstanceOf[
            scala.collection.immutable.List[Tuple.Union[(Tuple_this : Product)]]
          ]
        :scala.collection.immutable.List[Tuple.Union[(Tuple_this : Product)]])
      }.map[Int](
        {
          def $anonfun(t: Any): Int = bar(t)
          closure($anonfun)
        }
      )
      ()
    }
} of class class dotty.tools.dotc.ast.Trees$TypeDef # -1
exception while typing package <empty> {
  final lazy module val main$package: main$package$ = new main$package$()
  @scala.annotation.internal.SourceFile("src/main/scala/main.scala") final 
    module
   class main$package$() extends Object() {
    private def writeReplace(): AnyRef = 
      new scala.runtime.ModuleSerializationProxy(classOf[main$package.type])
    def bar(t: Any): Int = 1
    def foo(t: AnyRef): Unit = 
      {
        {
          val Tuple_this: NonEmptyTuple = t.asInstanceOf[NonEmptyTuple]
          (
            Tuple_this.productIterator.toList.asInstanceOf[
              
                scala.collection.immutable.List[
                  Tuple.Union[(Tuple_this : Product)]
                ]
              
            ]
          :scala.collection.immutable.List[Tuple.Union[(Tuple_this : Product)]])
        }.map[Int](
          {
            def $anonfun(t: Any): Int = bar(t)
            closure($anonfun)
          }
        )
        ()
      }
  }
} of class class dotty.tools.dotc.ast.Trees$PackageDef # -1
java.lang.AssertionError: assertion failed:  <none> while compiling /tmp/scastie5499222352497606134/src/main/scala/main.scala
```
</details>


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Crash from mapping on `NonEmptyTuple`.toList #12721

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Crash from mapping on NonEmptyTuple.toList #12721

Description

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Crash from mapping on `NonEmptyTuple`.toList #12721