Fix missing line break after top level class definitions

Author: nicolasstucki

compiler/src/dotty/tools/dotc/decompiler/DecompilationPrinter.scala

@@ -41,7 +41,7 @@ class DecompilationPrinter extends Phase {
       new TastyPrinter(unit.pickled.head._2).printContents()
     } else {
       out.println(s"/** Decompiled from $unit */")
-      out.print(TastyImpl.showSourceCode.showTree(unit.tpdTree)(ctx))
+      out.println(TastyImpl.showSourceCode.showTree(unit.tpdTree)(ctx))
     }
   }
 }

library/src/scala/tasty/util/ShowSourceCode.scala

@@ -49,7 +49,7 @@ class ShowSourceCode[T <: Tasty with Singleton](tasty0: T) extends Show[T](tasty
             this += lineBreak()
             printTrees(stats1, lineBreak())
           }
-          this += lineBreak() += "}" += lineBreak()
+          this += lineBreak() += "}"
         }
 
       case Import(expr, selectors) =>

tests/pos/simpleExractors.decompiled

@@ -1,16 +1,20 @@
 /** Decompiled from out/posTestFromTasty/pos/simpleExractors/Bar.class */
 object Bar {
   def unapply(arg: scala.Any): scala.Option[scala.Any] = scala.Some.apply[scala.Any](arg)
-}/** Decompiled from out/posTestFromTasty/pos/simpleExractors/BarSeq.class */
+}
+/** Decompiled from out/posTestFromTasty/pos/simpleExractors/BarSeq.class */
 object BarSeq {
   def unapplySeq(arg: scala.Any): scala.Option[scala.Seq[scala.Any]] = scala.Some.apply[collection.immutable.List[scala.Any]](scala.List.apply[scala.Any](arg))
-}/** Decompiled from out/posTestFromTasty/pos/simpleExractors/Baz.class */
+}
+/** Decompiled from out/posTestFromTasty/pos/simpleExractors/Baz.class */
 object Baz {
   def unapply[T](arg: T): scala.Option[T] = scala.Some.apply[T](arg)
-}/** Decompiled from out/posTestFromTasty/pos/simpleExractors/BazSeq.class */
+}
+/** Decompiled from out/posTestFromTasty/pos/simpleExractors/BazSeq.class */
 object BazSeq {
   def unapplySeq[T](arg: T): scala.Option[scala.Seq[T]] = scala.Some.apply[collection.immutable.List[T]](scala.List.apply[T](arg))
-}/** Decompiled from out/posTestFromTasty/pos/simpleExractors/Foo.class */
+}
+/** Decompiled from out/posTestFromTasty/pos/simpleExractors/Foo.class */
 class Foo() {
   def bar(x: scala.Any): scala.Unit = x match {
     case Bar(a) =>