[Native] Mark necessary methods that must be evaluated at compile-time

It includes methods and properties from Boolean, Char, String,
Enum and KCallable.

kotlin-native/runtime/src/main/kotlin/kotlin/Boolean.kt

@@ -21,6 +21,7 @@ public class Boolean private constructor() : Comparable<Boolean> {
      * Returns the inverse of this boolean.
      */
     @TypedIntrinsic(IntrinsicType.NOT)
+    @kotlin.internal.IntrinsicConstEvaluation
     external public operator fun not(): Boolean
 
     /**
@@ -28,6 +29,7 @@ public class Boolean private constructor() : Comparable<Boolean> {
      * this function does not perform short-circuit evaluation. Both `this` and [other] will always be evaluated.
      */
     @TypedIntrinsic(IntrinsicType.AND)
+    @kotlin.internal.IntrinsicConstEvaluation
     external public infix fun and(other: Boolean): Boolean
 
     /**
@@ -35,22 +37,28 @@ public class Boolean private constructor() : Comparable<Boolean> {
      * this function does not perform short-circuit evaluation. Both `this` and [other] will always be evaluated.
      */
     @TypedIntrinsic(IntrinsicType.OR)
+    @kotlin.internal.IntrinsicConstEvaluation
     external public infix fun or(other: Boolean): Boolean
 
     /**
      * Performs a logical `xor` operation between this Boolean and the [other] one.
      */
     @TypedIntrinsic(IntrinsicType.XOR)
+    @kotlin.internal.IntrinsicConstEvaluation
     external public infix fun xor(other: Boolean): Boolean
 
     @TypedIntrinsic(IntrinsicType.UNSIGNED_COMPARE_TO)
+    @kotlin.internal.IntrinsicConstEvaluation
     external public override fun compareTo(other: Boolean): Int
 
+    @kotlin.internal.IntrinsicConstEvaluation
     public fun equals(other: Boolean): Boolean = kotlin.native.internal.areEqualByValue(this, other)
 
+    @kotlin.internal.IntrinsicConstEvaluation
     public override fun equals(other: Any?): Boolean =
         other is Boolean && kotlin.native.internal.areEqualByValue(this, other)
 
+    @kotlin.internal.IntrinsicConstEvaluation
     public override fun toString() = if (this) "true" else "false"
 
     public override fun hashCode() = if (this) 1 else 0

kotlin-native/runtime/src/main/kotlin/kotlin/Char.kt

@@ -22,15 +22,19 @@ public class Char private constructor() : Comparable<Char> {
      * or a positive number if it's greater than other.
      */
     @TypedIntrinsic(IntrinsicType.UNSIGNED_COMPARE_TO)
+    @kotlin.internal.IntrinsicConstEvaluation
     external public override fun compareTo(other: Char): Int
 
     /** Adds the other Int value to this value resulting a Char. */
+    @kotlin.internal.IntrinsicConstEvaluation
     public inline operator fun plus(other: Int): Char =
             (this.code + other).toChar()
     /** Subtracts the other Char value from this value resulting an Int. */
+    @kotlin.internal.IntrinsicConstEvaluation
     public inline operator fun minus(other: Char): Int =
             this.code - other.code
     /** Subtracts the other Int value from this value resulting a Char. */
+    @kotlin.internal.IntrinsicConstEvaluation
     public inline operator fun minus(other: Int): Char =
             (this.code - other).toChar()
 
@@ -67,33 +71,40 @@ public class Char private constructor() : Comparable<Char> {
     @Deprecated("Conversion of Char to Number is deprecated. Use Char.code property instead.", ReplaceWith("this.code.toByte()"))
     @DeprecatedSinceKotlin(warningSince = "1.5")
     @TypedIntrinsic(IntrinsicType.INT_TRUNCATE)
+    @kotlin.internal.IntrinsicConstEvaluation
     external public fun toByte(): Byte
     /** Returns the value of this character as a `Char`. */
+    @kotlin.internal.IntrinsicConstEvaluation
     public inline fun toChar(): Char = this
     /** Returns the value of this character as a `Short`. */
     @Deprecated("Conversion of Char to Number is deprecated. Use Char.code property instead.", ReplaceWith("this.code.toShort()"))
     @DeprecatedSinceKotlin(warningSince = "1.5")
     @TypedIntrinsic(IntrinsicType.ZERO_EXTEND)
+    @kotlin.internal.IntrinsicConstEvaluation
     external public fun toShort(): Short
     /** Returns the value of this character as a `Int`. */
     @Deprecated("Conversion of Char to Number is deprecated. Use Char.code property instead.", ReplaceWith("this.code"))
     @DeprecatedSinceKotlin(warningSince = "1.5")
     @TypedIntrinsic(IntrinsicType.ZERO_EXTEND)
+    @kotlin.internal.IntrinsicConstEvaluation
     external public fun toInt(): Int
     /** Returns the value of this character as a `Long`. */
     @Deprecated("Conversion of Char to Number is deprecated. Use Char.code property instead.", ReplaceWith("this.code.toLong()"))
     @DeprecatedSinceKotlin(warningSince = "1.5")
     @TypedIntrinsic(IntrinsicType.ZERO_EXTEND)
+    @kotlin.internal.IntrinsicConstEvaluation
     external public fun toLong(): Long
     /** Returns the value of this character as a `Float`. */
     @Deprecated("Conversion of Char to Number is deprecated. Use Char.code property instead.", ReplaceWith("this.code.toFloat()"))
     @DeprecatedSinceKotlin(warningSince = "1.5")
     @TypedIntrinsic(IntrinsicType.UNSIGNED_TO_FLOAT)
+    @kotlin.internal.IntrinsicConstEvaluation
     external public fun toFloat(): Float
     /** Returns the value of this character as a `Double`. */
     @Deprecated("Conversion of Char to Number is deprecated. Use Char.code property instead.", ReplaceWith("this.code.toDouble()"))
     @DeprecatedSinceKotlin(warningSince = "1.5")
     @TypedIntrinsic(IntrinsicType.UNSIGNED_TO_FLOAT)
+    @kotlin.internal.IntrinsicConstEvaluation
     external public fun toDouble(): Double
 
     @kotlin.native.internal.CanBePrecreated
@@ -193,12 +204,15 @@ public class Char private constructor() : Comparable<Char> {
         public const val MAX_RADIX: Int = 36
     }
 
+    @kotlin.internal.IntrinsicConstEvaluation
     public fun equals(other: Char): Boolean = this == other
 
+    @kotlin.internal.IntrinsicConstEvaluation
     public override fun equals(other: Any?): Boolean =
             other is Char && this.equals(other)
 
     @GCUnsafeCall("Kotlin_Char_toString")
+    @kotlin.internal.IntrinsicConstEvaluation
     external public override fun toString(): String
 
     public override fun hashCode(): Int {

kotlin-native/runtime/src/main/kotlin/kotlin/Enum.kt

@@ -13,7 +13,7 @@ import kotlin.native.internal.enumValuesIntrinsic
  * See the [Kotlin language documentation](https://kotlinlang.org/docs/reference/enum-classes.html) for more
  * information on enum classes.
  */
-public abstract class Enum<E: Enum<E>>(public val name: String, public val ordinal: Int): Comparable<E> {
+public abstract class Enum<E: Enum<E>>(@kotlin.internal.IntrinsicConstEvaluation public val name: String, public val ordinal: Int): Comparable<E> {
 
     public companion object {
     }

kotlin-native/runtime/src/main/kotlin/kotlin/String.kt

@@ -21,15 +21,18 @@ public final class String : Comparable<String>, CharSequence {
     @GCUnsafeCall("Kotlin_String_hashCode")
     external public override fun hashCode(): Int
 
+    @kotlin.internal.IntrinsicConstEvaluation
     public operator fun plus(other: Any?): String {
         return plusImpl(other.toString())
     }
 
     @TypedIntrinsic(IntrinsicType.IDENTITY)
+    @kotlin.internal.IntrinsicConstEvaluation
     override public fun toString(): String {
         return this
     }
 
+    @kotlin.internal.IntrinsicConstEvaluation
     public override val length: Int
         get() = getStringLength()
 
@@ -39,12 +42,14 @@ public final class String : Comparable<String>, CharSequence {
      * If the [index] is out of bounds of this string, throws an [IndexOutOfBoundsException].
      */
     @GCUnsafeCall("Kotlin_String_get")
+    @kotlin.internal.IntrinsicConstEvaluation
     public external override fun get(index: Int): Char
 
     @GCUnsafeCall("Kotlin_String_subSequence")
     public external override fun subSequence(startIndex: Int, endIndex: Int): CharSequence
 
     @GCUnsafeCall("Kotlin_String_compareTo")
+    @kotlin.internal.IntrinsicConstEvaluation
     public external override fun compareTo(other: String): Int
 
     @GCUnsafeCall("Kotlin_String_getStringLength")
@@ -55,6 +60,7 @@ public final class String : Comparable<String>, CharSequence {
     internal external fun plusImpl(other: String): String
 
     @GCUnsafeCall("Kotlin_String_equals")
+    @kotlin.internal.IntrinsicConstEvaluation
     external override fun equals(other: Any?): Boolean
 }
 

kotlin-native/runtime/src/main/kotlin/kotlin/reflect/KCallable.kt

@@ -19,6 +19,7 @@ public actual interface KCallable<out R> : KAnnotatedElement {
      * - property accessors: the getter for a property named "foo" will have the name "<get-foo>",
      *   the setter, similarly, will have the name "<set-foo>".
      */
+    @kotlin.internal.IntrinsicConstEvaluation
     public actual val name: String
 
     /**