JS stdlib api test: various changes

- Setting -Doverwrite.output=true updates gold data
- Big packages don't get split into chunks
- Unique lines in the API are marked with /*∆*/ and diff test is removed
- Annotations on separate lines and other dump format tweaks
- Test data moved to libraries/stdlib/api/
- Minor visibility fix to Enum members

libraries/stdlib/api/js/kotlin.annotation.kt

@@ -0,0 +1,65 @@
+public final enum class AnnotationRetention : kotlin.Enum<kotlin.annotation.AnnotationRetention> {
+    enum entry SOURCE
+
+    enum entry BINARY
+
+    enum entry RUNTIME
+}
+
+public final enum class AnnotationTarget : kotlin.Enum<kotlin.annotation.AnnotationTarget> {
+    enum entry CLASS
+
+    enum entry ANNOTATION_CLASS
+
+    enum entry TYPE_PARAMETER
+
+    enum entry PROPERTY
+
+    enum entry FIELD
+
+    enum entry LOCAL_VARIABLE
+
+    enum entry VALUE_PARAMETER
+
+    enum entry CONSTRUCTOR
+
+    enum entry FUNCTION
+
+    enum entry PROPERTY_GETTER
+
+    enum entry PROPERTY_SETTER
+
+    enum entry TYPE
+
+    enum entry EXPRESSION
+
+    enum entry FILE
+
+    @kotlin.SinceKotlin(version = "1.1")
+    enum entry TYPEALIAS
+}
+
+@kotlin.annotation.Target(allowedTargets = {AnnotationTarget.ANNOTATION_CLASS})
+public final annotation class MustBeDocumented : kotlin.Annotation {
+    public constructor MustBeDocumented()
+}
+
+@kotlin.annotation.Target(allowedTargets = {AnnotationTarget.ANNOTATION_CLASS})
+public final annotation class Repeatable : kotlin.Annotation {
+    public constructor Repeatable()
+}
+
+@kotlin.annotation.Target(allowedTargets = {AnnotationTarget.ANNOTATION_CLASS})
+public final annotation class Retention : kotlin.Annotation {
+    public constructor Retention(value: kotlin.annotation.AnnotationRetention = ...)
+
+    public final val value: kotlin.annotation.AnnotationRetention { get; }
+}
+
+@kotlin.annotation.Target(allowedTargets = {AnnotationTarget.ANNOTATION_CLASS})
+@kotlin.annotation.MustBeDocumented
+public final annotation class Target : kotlin.Annotation {
+    public constructor Target(vararg allowedTargets: kotlin.annotation.AnnotationTarget)
+
+    public final val allowedTargets: kotlin.Array<out kotlin.annotation.AnnotationTarget> { get; }
+}