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

compiler/testData/codegen/light-analysis/fullJdk/native/nativePropertyAccessors.txt

@@ -1,3 +1,4 @@
+@kotlin.Metadata
 public final class C {
     public final static field Companion: C.Companion
     private final field defaultGetter$1: int
@@ -11,6 +12,7 @@ public final class C {
     public final method setDefaultSetter(p0: int): void
 }
 
+@kotlin.Metadata
 public final static class C/Companion {
     inner class C/Companion
     private method <init>(): void
@@ -19,6 +21,7 @@ public final static class C/Companion {
     public final method setDefaultSetter(p0: int): void
 }
 
+@kotlin.Metadata
 public final class NativePropertyAccessorsKt {
     private final static field defaultGetter: int
     private static field defaultSetter: int

compiler/testData/codegen/light-analysis/fullJdk/native/simpleNative.txt

@@ -1,7 +1,9 @@
+@kotlin.Metadata
 public final class foo/SimpleNativeKt {
     public final static @org.jetbrains.annotations.NotNull method box(): java.lang.String
 }
 
+@kotlin.Metadata
 public final class foo/WithNative {
     public method <init>(): void
     public final method foo(): void

compiler/testData/codegen/light-analysis/fullJdk/native/topLevel.txt

@@ -1,3 +1,4 @@
+@kotlin.Metadata
 public final class foo/TopLevelKt {
     public final static method bar(p0: long, @org.jetbrains.annotations.NotNull p1: java.lang.String): double
     public final static @org.jetbrains.annotations.NotNull method box(): java.lang.String