Light analysis tests: do not render empty lines between classes and in the beginning

compiler/testData/codegen/light-analysis/enum/companionObjectInEnum.txt

@@ -2,7 +2,6 @@ public final class CompanionObjectInEnumKt {
     public final static @org.jetbrains.annotations.NotNull method box(): java.lang.String
 }
 
-
 public enum class Game {
     public final static field Companion: Game.Companion
     public final static field PAPER: Game
@@ -17,7 +16,6 @@ public enum class Game {
     public static method values(): Game[]
 }
 
-
 public final static class Game/Companion {
     inner class Game/Companion
     private method <init>(): void