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

compiler/testData/codegen/light-analysis/reflection/mapping/fakeOverrides/javaFieldGetterSetter.txt

@@ -2,7 +2,6 @@ public final class JavaFieldGetterSetterKt {
     public final static @org.jetbrains.annotations.NotNull method box(): java.lang.String
 }
 
-
 public class TestBase {
     private field id: long
     public method <init>(): void
@@ -10,7 +9,6 @@ public class TestBase {
     public final method setId(p0: long): void
 }
 
-
 public final class TestChild {
     public method <init>(): void
 }