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

compiler/testData/codegen/light-analysis/functions/invoke/kt3190.txt

@@ -1,3 +1,4 @@
+@kotlin.Metadata
 public final class Cached {
     private final field generate: kotlin.jvm.functions.Function1
     private final @org.jetbrains.annotations.NotNull field store: java.util.HashMap
@@ -6,6 +7,7 @@ public final class Cached {
     public method invoke(p0: java.lang.Object): java.lang.Object
 }
 
+@kotlin.Metadata
 public final class Kt3190Kt {
     public final static @org.jetbrains.annotations.NotNull method box(): java.lang.String
     public final static method getOrPut(@org.jetbrains.annotations.NotNull p0: java.util.Map, p1: java.lang.Object, @org.jetbrains.annotations.NotNull p2: kotlin.jvm.functions.Function0): java.lang.Object