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

compiler/testData/codegen/light-analysis/privateConstructors/withLinkedClasses.txt

@@ -6,14 +6,12 @@ public class Outer {
     public final @org.jetbrains.annotations.Nullable method getP(): Outer
 }
 
-
 public final class Outer/First {
     public final static field INSTANCE: Outer.First
     inner class Outer/First
     private method <init>(): void
 }
 
-
 public final static class Outer/Other {
     inner class Outer/Other
     public @synthetic.kotlin.jvm.GeneratedByJvmOverloads method <init>(): void
@@ -21,7 +19,6 @@ public final static class Outer/Other {
     public synthetic method <init>(p0: Outer, p1: int, p2: kotlin.jvm.internal.DefaultConstructorMarker): void
 }
 
-
 public final class WithLinkedClassesKt {
     public final static @org.jetbrains.annotations.NotNull method box(): java.lang.String
 }