Close #17132 as neg test

For some reason, the derivesFrom issue was only observable in the minimization.
The original test case diverges similarly to the previous description,
but only when attempting normalizing during CodeGen...

Author: EugeneFlesselle

compiler/src/dotty/tools/backend/jvm/CodeGen.scala

@@ -85,8 +85,7 @@ class CodeGen(val int: DottyBackendInterface, val primitives: DottyPrimitives)(
         case ex: InterruptedException => throw ex
         case ex: CompilationUnit.SuspendException => throw ex
         case ex: Throwable =>
-          ex.printStackTrace()
-          report.error(s"Error while emitting ${unit.source}\n${ex.getMessage}", NoSourcePosition)
+          report.error(s"Error while emitting ${unit.source}\n${ex.getMessage}", cd.sourcePos)
 
 
     def genTastyAndSetAttributes(claszSymbol: Symbol, store: ClassNode): Unit =

tests/neg/i17132.scala

@@ -0,0 +1,11 @@
+
+sealed trait Transformation[T]
+
+case object Count extends Transformation[Int]
+case class MultiTransformation[T1 <: Transformation[?], T2 <: Transformation[?]](t1: T1, t2: T2) // error cyclic
+  extends Transformation[MultiTransformationResult[T1, T2]]
+
+type MultiTransformationResult[T1 <: Transformation[?], T2 <: Transformation[?]] <: Tuple = (T1, T2) match {
+  case (Transformation[t], MultiTransformation[t1, t2]) => t *: MultiTransformationResult[t1, t2]
+  case (Transformation[t1], Transformation[t2]) => (t1, t2)
+}