[JS IR] Extract adding of function call to another function

[JS IR] Add option for dce mode

[JS IR] Add logging to non useful declarations if appropriate dce mode

[JS IR] Add mode with throwing exception

[JS IR] unreachableDeclaration method is in rootDeclarations

[JS IR] Add js extra help arg with dce mode and include debug.kt to compile unreachableMethod

[JS IR] unreachableDeclaration as internal to not reproduce stdlib api

[JS IR] Fix description of dce mode argument

- Use console.error instead of console.log
- Use JsError instead Kotlin exception for lightweight

[JS IR] Remove body for throwing exception

[JS IR] Remove default parameter in unreachableDeclaration

[JS IR] Process without removing fields and declaration containers

[JS IR] Rename dce mode on dce runtime diagnostic

[JS IR] Use console.trace instead of console.error

[JS IR] Extract JsError

- Fix naming in prependFunctionCall
- Fix description on runtime diagnostic argument
- Using message collector instead of throwing exception

[JS IR] Distinguish unreachableMethods for log and exception

[JS IR] Extract checking of Kotlin packages of IrField

^KT-45059 fixed

libraries/stdlib/js-ir-minimal-for-test/build.gradle.kts

@@ -71,7 +71,6 @@ val jsMainSources by task<Sync> {
                 "libraries/stdlib/js/src/kotlin/console.kt",
                 "libraries/stdlib/js/src/kotlin/coreDeprecated.kt",
                 "libraries/stdlib/js/src/kotlin/date.kt",
-                "libraries/stdlib/js/src/kotlin/debug.kt",
                 "libraries/stdlib/js/src/kotlin/grouping.kt",
                 "libraries/stdlib/js/src/kotlin/json.kt",
                 "libraries/stdlib/js/src/kotlin/promise.kt",

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

@@ -0,0 +1,7 @@
+/*
+ * Copyright 2010-2021 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.
+ */
+
+@JsName("Error")
+internal open external class JsError(message: String) : Throwable

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

@@ -0,0 +1,16 @@
+/*
+ * Copyright 2010-2021 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
+
+import JsError
+
+internal fun unreachableDeclarationLog() {
+    console.asDynamic().trace("Unreachable declaration")
+}
+
+internal fun unreachableDeclarationException() {
+    throw JsError("Unreachable declaration")
+}