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

compiler/testData/codegen/light-analysis/innerNested/superConstructorCall/localExtendsInner.txt

@@ -1,3 +1,4 @@
+@kotlin.Metadata
 public class Father {
     private final @org.jetbrains.annotations.NotNull field param: java.lang.String
     inner class Father/Child
@@ -6,6 +7,7 @@ public class Father {
     public final @org.jetbrains.annotations.NotNull method getParam(): java.lang.String
 }
 
+@kotlin.Metadata
 public final class Father/Child {
     synthetic final field this$0: Father
     inner class Father/Child
@@ -13,6 +15,7 @@ public final class Father/Child {
     public final @org.jetbrains.annotations.NotNull method test(): Father.InClass
 }
 
+@kotlin.Metadata
 public abstract class Father/InClass {
     synthetic final field this$0: Father
     inner class Father/InClass
@@ -20,6 +23,7 @@ public abstract class Father/InClass {
     public final @org.jetbrains.annotations.NotNull method work(): java.lang.String
 }
 
+@kotlin.Metadata
 public final class LocalExtendsInnerKt {
     public final static @org.jetbrains.annotations.NotNull method box(): java.lang.String
 }