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

compiler/testData/codegen/light-analysis/reflection/classes/companionObject.txt

@@ -4,18 +4,15 @@ public final class A {
     public method <init>(): void
 }
 
-
 public final static class A/C {
     inner class A/C
     private method <init>(): void
 }
 
-
 public final class CompanionObjectKt {
     public final static @org.jetbrains.annotations.NotNull method box(): java.lang.String
 }
 
-
 public enum class E {
     public final static field Companion: E.Companion
     public final static field ENTRY: E
@@ -25,7 +22,6 @@ public enum class E {
     public static method values(): E[]
 }
 
-
 public final static class E/Companion {
     inner class E/Companion
     private method <init>(): void