[stdlib] Explicit visibility and return types: common

libraries/stdlib/src/kotlin/annotations/NativeAnnotations.kt

@@ -50,7 +50,7 @@ public expect annotation class CName(val externName: String = "", val shortName:
 )
 @Retention(AnnotationRetention.BINARY)
 @OptionalExpectation
-expect annotation class FreezingIsDeprecated
+public expect annotation class FreezingIsDeprecated
 
 /**
  * Instructs the Kotlin compiler to use a custom Objective-C and/or Swift name for this class, property, parameter or function.

libraries/stdlib/src/kotlin/collections/Grouping.kt

@@ -26,9 +26,9 @@ package kotlin.collections
 @SinceKotlin("1.1")
 public interface Grouping<T, out K> {
     /** Returns an [Iterator] over the elements of the source of this grouping. */
-    fun sourceIterator(): Iterator<T>
+    public fun sourceIterator(): Iterator<T>
     /** Extracts the key of an [element]. */
-    fun keyOf(element: T): K
+    public fun keyOf(element: T): K
 }
 
 /**

libraries/stdlib/src/kotlin/collections/SequenceBuilder.kt

@@ -89,7 +89,7 @@ public abstract class SequenceScope<in T> internal constructor() {
      *
      * @sample samples.collections.Sequences.Building.buildSequenceYieldAll
      */
-    public suspend fun yieldAll(sequence: Sequence<T>) = yieldAll(sequence.iterator())
+    public suspend fun yieldAll(sequence: Sequence<T>): Unit = yieldAll(sequence.iterator())
 }
 
 private typealias State = Int

libraries/stdlib/src/kotlin/coroutines/ContinuationInterceptor.kt

@@ -21,7 +21,7 @@ public interface ContinuationInterceptor : CoroutineContext.Element {
     /**
      * The key that defines *the* context interceptor.
      */
-    companion object Key : CoroutineContext.Key<ContinuationInterceptor>
+    public companion object Key : CoroutineContext.Key<ContinuationInterceptor>
 
     /**
      * Returns continuation that wraps the original [continuation], thus intercepting all resumptions.

libraries/stdlib/src/kotlin/random/Random.kt

@@ -267,7 +267,7 @@ public abstract class Random {
      *
      * @sample samples.random.Randoms.defaultRandom
      */
-    companion object Default : Random(), Serializable {
+    public companion object Default : Random(), Serializable {
         private val defaultRandom: Random = defaultPlatformRandom()
 
         private object Serialized : Serializable {

libraries/stdlib/src/kotlin/reflect/KClasses.kt

@@ -21,7 +21,7 @@ import kotlin.internal.LowPriorityInOverloadResolution
  */
 @SinceKotlin("1.4")
 @LowPriorityInOverloadResolution
-fun <T : Any> KClass<T>.cast(value: Any?): T {
+public fun <T : Any> KClass<T>.cast(value: Any?): T {
     if (!isInstance(value)) throw ClassCastException("Value cannot be cast to $qualifiedOrSimpleName")
     return value as T
 }
@@ -40,6 +40,6 @@ internal expect val KClass<*>.qualifiedOrSimpleName: String?
  */
 @SinceKotlin("1.4")
 @LowPriorityInOverloadResolution
-fun <T : Any> KClass<T>.safeCast(value: Any?): T? {
+public fun <T : Any> KClass<T>.safeCast(value: Any?): T? {
     return if (isInstance(value)) value as T else null
 }

libraries/stdlib/src/kotlin/reflect/KVariance.kt

@@ -16,7 +16,7 @@ package kotlin.reflect
  * @see [KTypeProjection]
  */
 @SinceKotlin("1.1")
-enum class KVariance {
+public enum class KVariance {
     /**
      * The affected type parameter or type is *invariant*, which means it has no variance applied to it.
      */

libraries/stdlib/src/kotlin/text/Appendable.kt

@@ -11,20 +11,20 @@ package kotlin.text
 /**
  * An object to which char sequences and values can be appended.
  */
-expect interface Appendable {
+public expect interface Appendable {
     /**
      * Appends the specified character [value] to this Appendable and returns this instance.
      *
      * @param value the character to append.
      */
-    fun append(value: Char): Appendable
+    public fun append(value: Char): Appendable
 
     /**
      * Appends the specified character sequence [value] to this Appendable and returns this instance.
      *
      * @param value the character sequence to append. If [value] is `null`, then the four characters `"null"` are appended to this Appendable.
      */
-    fun append(value: CharSequence?): Appendable
+    public fun append(value: CharSequence?): Appendable
 
     /**
      * Appends a subsequence of the specified character sequence [value] to this Appendable and returns this instance.
@@ -36,7 +36,7 @@ expect interface Appendable {
      *
      * @throws IndexOutOfBoundsException or [IllegalArgumentException] when [startIndex] or [endIndex] is out of range of the [value] character sequence indices or when `startIndex > endIndex`.
      */
-    fun append(value: CharSequence?, startIndex: Int, endIndex: Int): Appendable
+    public fun append(value: CharSequence?, startIndex: Int, endIndex: Int): Appendable
 }
 
 /**

libraries/stdlib/src/kotlin/util/KotlinVersion.kt

@@ -14,7 +14,7 @@ package kotlin
  * @constructor Creates a version from all three components.
  */
 @SinceKotlin("1.1")
-public class KotlinVersion(val major: Int, val minor: Int, val patch: Int) : Comparable<KotlinVersion> {
+public class KotlinVersion(public val major: Int, public val minor: Int, public val patch: Int) : Comparable<KotlinVersion> {
     /**
      * Creates a version from [major] and [minor] components, leaving [patch] component zero.
      */
@@ -61,12 +61,12 @@ public class KotlinVersion(val major: Int, val minor: Int, val patch: Int) : Com
                 (this.minor > minor || this.minor == minor &&
                         this.patch >= patch))
 
-    companion object {
+    public companion object {
         /**
          * Maximum value a version component can have, a constant value 255.
          */
         // NOTE: Must be placed before CURRENT because its initialization requires this field being initialized in JS
-        public const val MAX_COMPONENT_VALUE = 255
+        public const val MAX_COMPONENT_VALUE: Int = 255
 
         /**
          * Returns the current version of the Kotlin standard library.

libraries/stdlib/src/kotlin/util/Lateinit.kt

@@ -19,5 +19,5 @@ import kotlin.reflect.KProperty0
  */
 @SinceKotlin("1.2")
 @InlineOnly
-inline val @receiver:AccessibleLateinitPropertyLiteral KProperty0<*>.isInitialized: Boolean
+public inline val @receiver:AccessibleLateinitPropertyLiteral KProperty0<*>.isInitialized: Boolean
     get() = throw NotImplementedError("Implementation is intrinsic")