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

compiler/testData/codegen/light-analysis/innerNested/createNestedClass.txt

@@ -6,13 +6,11 @@ public final class A {
     public method <init>(): void
 }
 
-
 public final static class A/B1 {
     inner class A/B1
     public method <init>(): void
 }
 
-
 public final static class A/B2 {
     private final field x: int
     inner class A/B2
@@ -20,7 +18,6 @@ public final static class A/B2 {
     public final method getX(): int
 }
 
-
 public final static class A/B3 {
     private final field x: long
     private final field y: int
@@ -30,7 +27,6 @@ public final static class A/B3 {
     public final method getY(): int
 }
 
-
 public final static class A/B4 {
     private final @org.jetbrains.annotations.NotNull field str: java.lang.String
     inner class A/B4
@@ -38,7 +34,6 @@ public final static class A/B4 {
     public final @org.jetbrains.annotations.NotNull method getStr(): java.lang.String
 }
 
-
 public final class CreateNestedClassKt {
     public final static @org.jetbrains.annotations.NotNull method box(): java.lang.String
 }