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

compiler/testData/codegen/light-analysis/reflection/methodsFromAny/functionEqualsHashCode.txt

@@ -3,13 +3,11 @@ public final class A {
     public final method mem(): void
 }
 
-
 public final class B {
     public method <init>(): void
     public final method mem(): void
 }
 
-
 public final class FunctionEqualsHashCodeKt {
     public final static @org.jetbrains.annotations.NotNull method box(): java.lang.String
     public final static method checkEqual(@org.jetbrains.annotations.NotNull p0: java.lang.Object, @org.jetbrains.annotations.NotNull p1: java.lang.Object): void