[K/JS] Use only single variant of default arguments function wrapper for exported and not-exported functions

libraries/stdlib/js-ir/runtime/coreRuntime.kt

@@ -90,8 +90,8 @@ internal fun captureStack(instance: Throwable, constructorFunction: Any) {
 internal fun newThrowable(message: String?, cause: Throwable?): Throwable {
     val throwable = js("new Error()")
     throwable.message = if (isUndefined(message)) {
-        if (isUndefined(cause)) message else cause?.toString() ?: undefined
-    } else message ?: undefined
+        if (isUndefined(cause)) message else cause?.toString() ?: VOID
+    } else message ?: VOID
     throwable.cause = cause
     throwable.name = "Throwable"
     return throwable.unsafeCast<Throwable>()
@@ -109,10 +109,10 @@ internal fun setPropertiesToThrowableInstance(this_: dynamic, message: String?,
             @Suppress("SENSELESS_COMPARISON")
             if (message !== null) {
                 // undefined
-                cause?.toString() ?: undefined
+                cause?.toString() ?: VOID
             } else {
                 // real null
-                undefined
+                VOID
             }
         } else message
     }
@@ -135,7 +135,19 @@ internal fun errorCode(description: String): Nothing {
 }
 
 @Suppress("SENSELESS_COMPARISON")
-internal fun isUndefined(value: dynamic): Boolean = value === undefined
+internal fun isUndefined(value: dynamic): Boolean = value === VOID
 
 internal fun <T, R> boxIntrinsic(@Suppress("UNUSED_PARAMETER") x: T): R = error("Should be lowered")
 internal fun <T, R> unboxIntrinsic(@Suppress("UNUSED_PARAMETER") x: T): R = error("Should be lowered")
+
+@Suppress("UNUSED_PARAMETER")
+internal fun protoOf(constructor: Any) =
+    js("constructor.prototype")
+
+@Suppress("UNUSED_PARAMETER")
+internal fun <T> objectCreate(proto: T?) =
+    js("Object.create(proto)")
+
+@Suppress("UNUSED_PARAMETER")
+internal fun defineProp(obj: Any, name: String, getter: Any?, setter: Any?) =
+    js("Object.defineProperty(obj, name, { configurable: true, get: getter, set: setter })")

libraries/stdlib/js-ir/runtime/jsIntrinsics.kt

@@ -18,6 +18,9 @@ internal fun jsEqeq(a: Any?, b: Any?): Boolean
 @JsIntrinsic
 internal fun jsNotEq(a: Any?, b: Any?): Boolean
 
+@JsIntrinsic
+internal fun jsUndefined(): Nothing?
+
 @JsIntrinsic
 internal fun jsEqeqeq(a: Any?, b: Any?): Boolean
 
@@ -172,9 +175,6 @@ internal fun float32ArrayOf(a: Any?): Any?
 @JsIntrinsic
 internal fun float64ArrayOf(a: Any?): Any?
 
-@JsIntrinsic
-internal fun <T> objectCreate(): T
-
 @JsIntrinsic
 internal fun <T> sharedBoxCreate(v: T?): dynamic
 
@@ -184,15 +184,15 @@ internal fun <T> sharedBoxRead(box: dynamic): T?
 @JsIntrinsic
 internal fun <T> sharedBoxWrite(box: dynamic, nv: T?)
 
-@JsIntrinsic
-internal fun jsUndefined(): Nothing?
-
 @JsIntrinsic
 internal fun <T> DefaultType(): T
 
 @JsIntrinsic
 internal fun jsBind(receiver: Any?, target: Any?): Any?
 
+@JsIntrinsic
+internal fun jsCall(receiver: Any?, target: Any?, vararg args: Any?): Any?
+
 @JsIntrinsic
 internal fun <A> slice(a: A): A
 
@@ -220,4 +220,7 @@ internal fun <reified T : Any> jsClassIntrinsic(): JsClass<T>
 internal fun jsInIntrinsic(lhs: Any?, rhs: Any): Boolean
 
 @JsIntrinsic
-internal fun jsDelete(e: Any?)
+internal fun jsDelete(e: Any?)
+
+@JsIntrinsic
+internal fun jsContextfulRef(context: dynamic, fn: dynamic): dynamic

libraries/stdlib/js-ir/runtime/reflectRuntime.kt

@@ -44,8 +44,7 @@ private fun getKPropMetadata(paramCount: Int, setter: Any?): dynamic {
 }
 
 private fun metadataObject(): Metadata {
-    val undef = js("undefined")
-    return classMeta(undef, undef, undef, undef)
+    return classMeta(VOID, VOID, VOID, VOID)
 }
 
 private val propertyRefClassMetadataCache: Array<Array<dynamic>> = arrayOf<Array<dynamic>>(

libraries/stdlib/js-ir/runtime/typeCheckUtils.kt

@@ -44,7 +44,7 @@ internal fun classMeta(name: String?, associatedObjectKey: Number?, associatedOb
 }
 
 // Seems like we need to disable this check if variables are used inside js annotation
-@Suppress("UNUSED_PARAMETER")
+@Suppress("UNUSED_PARAMETER", "UNUSED_VARIABLE")
 private fun createMetadata(
     kind: String,
     name: String?,
@@ -53,13 +53,14 @@ private fun createMetadata(
     suspendArity: Array<Int>?,
     iid: Int?
 ): Metadata {
+    val undef = VOID
     return js("""({
     kind: kind,
     simpleName: name,
     associatedObjectKey: associatedObjectKey,
     associatedObjects: associatedObjects,
     suspendArity: suspendArity,
-    ${'$'}kClass$: undefined,
+    ${'$'}kClass$: undef,
     iid: iid
 })""")
 }

libraries/stdlib/js-ir/runtime/void.kt

@@ -0,0 +1,7 @@
+/*
+ * Copyright 2010-2022 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+package kotlin.js
+
+internal val VOID: Nothing? = js("void 0")