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

compiler/testData/codegen/light-analysis/classes/inheritance.txt

@@ -1,58 +1,49 @@
 public interface Abstract
 
-
 public final class InheritanceKt {
     public final static @org.jetbrains.annotations.NotNull method box(): java.lang.String
 }
 
-
 public final class P1 {
     private synthetic final field $$delegate_0: Y
     public method <init>(p0: int, @org.jetbrains.annotations.NotNull p1: Y): void
     public method getY(): int
 }
 
-
 public final class P2 {
     private synthetic final field $$delegate_0: Y
     public method <init>(p0: int, @org.jetbrains.annotations.NotNull p1: Y): void
     public method getY(): int
 }
 
-
 public final class P3 {
     private synthetic final field $$delegate_0: Y
     public method <init>(p0: int, @org.jetbrains.annotations.NotNull p1: Y): void
     public method getY(): int
 }
 
-
 public final class P4 {
     private synthetic final field $$delegate_0: Y
     public method <init>(p0: int, @org.jetbrains.annotations.NotNull p1: Y): void
     public method getY(): int
 }
 
-
 public final class Point {
     private final field y: int
     public method <init>(p0: int, p1: int): void
     public method getY(): int
 }
 
-
 public class X {
     private final field x: int
     public method <init>(p0: int): void
     public final method getX(): int
 }
 
-
 public interface Y {
     public abstract method getY(): int
 }
 
-
 public final class YImpl {
     private final field y: int
     public method <init>(p0: int): void