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

compiler/testData/codegen/light-analysis/innerNested/superConstructorCall/objectExtendsInner.txt

@@ -4,7 +4,6 @@ public final class A {
     public final @org.jetbrains.annotations.NotNull method box(): java.lang.String
 }
 
-
 public class A/Inner {
     private final @org.jetbrains.annotations.NotNull field result: java.lang.String
     synthetic final field this$0: A
@@ -13,7 +12,6 @@ public class A/Inner {
     public final @org.jetbrains.annotations.NotNull method getResult(): java.lang.String
 }
 
-
 public final class ObjectExtendsInnerKt {
     public final static @org.jetbrains.annotations.NotNull method box(): java.lang.String
 }