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

compiler/testData/codegen/light-analysis/safeCall/kt1572.txt

@@ -4,7 +4,6 @@ public final class A {
     public final method getT(): int
 }
 
-
 public final class Kt1572Kt {
     public final static @org.jetbrains.annotations.NotNull method box(): java.lang.String
     public final static method testKt1572(): boolean

compiler/testData/codegen/light-analysis/safeCall/kt232.txt

@@ -3,7 +3,6 @@ public final class A {
     public final method foo(): void
 }
 
-
 public final class Kt232Kt {
     public final static @org.jetbrains.annotations.NotNull method box(): java.lang.String
 }

compiler/testData/codegen/light-analysis/safeCall/kt247.txt

@@ -4,21 +4,18 @@ public final class C {
     public final method getX(): int
 }
 
-
 public final class D {
     private final @org.jetbrains.annotations.NotNull field s: java.lang.String
     public method <init>(@org.jetbrains.annotations.NotNull p0: java.lang.String): void
     public final @org.jetbrains.annotations.NotNull method getS(): java.lang.String
 }
 
-
 public final class E {
     public method <init>(): void
     public final @org.jetbrains.annotations.NotNull method bar(): E
     public final method foo(): int
 }
 
-
 public final class Kt247Kt {
     public final static @org.jetbrains.annotations.NotNull method box(): java.lang.String
     public final static method t1(): boolean

compiler/testData/codegen/light-analysis/safeCall/kt4733.txt

@@ -2,7 +2,6 @@ public final class Kt4733Kt {
     public final static @org.jetbrains.annotations.NotNull method box(): java.lang.String
 }
 
-
 public final class Test {
     public method <init>(): void
     public final method getFoo(p0: int): int