Kapt3: Write stub class files with metadata (needed for incremental compilation)

compiler/testData/codegen/light-analysis/annotations/varargInAnnotationParameter.txt

@@ -1,59 +1,71 @@
 @kotlin.annotation.Retention
 @java.lang.annotation.Retention
+@kotlin.Metadata
 public annotation class Ann {
     public abstract method p(): int[]
 }
 
 @Ann
+@kotlin.Metadata
 public final class MyClass1 {
     public method <init>(): void
 }
 
 @Ann
+@kotlin.Metadata
 public final class MyClass10 {
     public method <init>(): void
 }
 
 @Ann
+@kotlin.Metadata
 public final class MyClass2 {
     public method <init>(): void
 }
 
 @Ann
+@kotlin.Metadata
 public final class MyClass3 {
     public method <init>(): void
 }
 
 @Ann
+@kotlin.Metadata
 public final class MyClass4 {
     public method <init>(): void
 }
 
 @Ann
+@kotlin.Metadata
 public final class MyClass5 {
     public method <init>(): void
 }
 
 @Ann
+@kotlin.Metadata
 public final class MyClass6 {
     public method <init>(): void
 }
 
 @Ann
+@kotlin.Metadata
 public final class MyClass7 {
     public method <init>(): void
 }
 
 @Ann
+@kotlin.Metadata
 public final class MyClass8 {
     public method <init>(): void
 }
 
 @Ann
+@kotlin.Metadata
 public final class MyClass9 {
     public method <init>(): void
 }
 
+@kotlin.Metadata
 public final class VarargInAnnotationParameterKt {
     public final static @org.jetbrains.annotations.NotNull method box(): java.lang.String
     public final static method test(@org.jetbrains.annotations.NotNull p0: java.lang.Class, @org.jetbrains.annotations.NotNull p1: java.lang.String): void