[JS] Support wrapped and dynamic types in typeOf

libraries/stdlib/js/src/kotlin/reflect/KTypeHelpers.kt

@@ -19,6 +19,9 @@ internal fun createKType(
 ) =
     KTypeImpl(classifier, arguments.asList(), isMarkedNullable)
 
+@JsName("createDynamicKType")
+internal fun createDynamicKType(): KType = DynamicKType
+
 @JsName("markKTypeNullable")
 internal fun markKTypeNullable(kType: KType) = KTypeImpl(kType.classifier!!, kType.arguments, true)
 

libraries/stdlib/js/src/kotlin/reflect/KTypeImpl.kt

@@ -45,6 +45,14 @@ internal class KTypeImpl(
     }
 }
 
+internal object DynamicKType : KType {
+    override val classifier: KClassifier? = null
+    override val arguments: List<KTypeProjection> = emptyList()
+    override val isMarkedNullable: Boolean = false
+    override val annotations: List<Annotation> = emptyList()
+    override fun toString(): String = "dynamic"
+}
+
 internal fun KVariance.prefixString() =
     when (this) {
         KVariance.INVARIANT -> ""