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

compiler/testData/codegen/light-analysis/package/checkCast.txt

@@ -5,7 +5,6 @@ public final class C {
     public final method getX(): int
 }
 
-
 public final class CheckCastKt {
     public final static @org.jetbrains.annotations.NotNull method box(): java.lang.String
 }

compiler/testData/codegen/light-analysis/package/incrementProperty.txt

@@ -2,7 +2,6 @@ public final class IncrementPropertyKt {
     public final static @org.jetbrains.annotations.NotNull method box(): java.lang.String
 }
 
-
 public final class Slot {
     private field vitality: int
     public method <init>(): void

compiler/testData/codegen/light-analysis/package/invokespecial.txt

@@ -4,21 +4,18 @@ public final class A {
     public final method foo(): void
 }
 
-
 public final class B {
     private final field foo: int
     public method <init>(): void
     public final method foo(): void
 }
 
-
 public final class C {
     private field foo: int
     public method <init>(): void
     public final method foo(): void
 }
 
-
 public final class D {
     private field foo: int
     public method <init>(): void
@@ -27,7 +24,6 @@ public final class D {
     private final method setFoo(p0: int): void
 }
 
-
 public final class InvokespecialKt {
     public final static @org.jetbrains.annotations.NotNull method box(): java.lang.String
 }

compiler/testData/codegen/light-analysis/package/mainInFiles.txt

@@ -2,17 +2,14 @@ public final class pkg/AKt {
     public final static method main(@org.jetbrains.annotations.NotNull p0: java.lang.String[]): void
 }
 
-
 public final class pkg/BKt {
     public final static method main(@org.jetbrains.annotations.NotNull p0: java.lang.String[]): void
 }
 
-
 public final class test/A {
     public method <init>(): void
 }
 
-
 public final class test/_1Kt {
     public final static @org.jetbrains.annotations.NotNull method box(): java.lang.String
     public final static @org.jetbrains.annotations.NotNull method getMain(@org.jetbrains.annotations.NotNull p0: java.lang.String): java.lang.reflect.Method

compiler/testData/codegen/light-analysis/package/packageLocalClassNotImportedWithDefaultImport.txt

@@ -2,17 +2,14 @@ public final class a/BoxKt {
     public final static @org.jetbrains.annotations.NotNull method box(): java.lang.String
 }
 
-
 public final class a/X {
     public method <init>(): void
 }
 
-
 final class kotlin/jvm/SomeClass {
     public method <init>(): void
 }
 
-
 public class pack/SomeClass {
     public method <init>(): void
 }