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

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

@@ -4,40 +4,34 @@ public final class A {
     public method <init>(): void
 }
 
-
 public final static class A/Companion {
     inner class A/Companion
     private method <init>(): void
     public final method foo(): int
 }
 
-
 public final class B {
     public final static field Factory: B.Factory
     inner class B/Factory
     public method <init>(): void
 }
 
-
 public final static class B/Factory {
     inner class B/Factory
     private method <init>(): void
     public final method foo(): int
 }
 
-
 public final class C {
     public method <init>(): void
 }
 
-
 public final class Obj {
     public final static field INSTANCE: Obj
     private method <init>(): void
     public final method foo(): int
 }
 
-
 public final class ObjectInstanceKt {
     public final static @org.jetbrains.annotations.NotNull method box(): java.lang.String
 }