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

compiler/testData/codegen/light-analysis/reflection/properties/allVsDeclared.txt

@@ -2,7 +2,6 @@ public final class AllVsDeclaredKt {
     public final static @org.jetbrains.annotations.NotNull method box(): java.lang.String
 }
 
-
 public final class Sub {
     private final field c: double
     public method <init>(): void
@@ -10,7 +9,6 @@ public final class Sub {
     public final method getD(p0: char): char
 }
 
-
 public class Super {
     private final field a: int
     public method <init>(): void