Revert "[K/JS] Create JavaScript Simple Object plugin that helps crea…

…te typed JS objects"

.space/CODEOWNERS

@@ -376,8 +376,6 @@
 /plugins/kapt3/kapt3-compiler/tests-gen/ "Kotlin Compiler Core" "Kotlin JVM"
 /plugins/kapt4/ "Kotlin JVM"
 /plugins/kotlinx-serialization/ Sergey.Shanshin Leonid.Startsev
-/plugins/jso/ "Kotlin JS"
-/libraries/tools/jso "Kotlin JS"
 /plugins/lombok/ "Kotlin Compiler Core"
 /plugins/noarg/ "Kotlin Compiler Core"
 /plugins/parcelize/ "Kotlin Compiler Core"

build.gradle.kts

@@ -874,7 +874,6 @@ tasks {
         dependsOn(":plugins:fir-plugin-prototype:fir-plugin-ic-test:test")
         dependsOn(":kotlin-imports-dumper-compiler-plugin:test")
         dependsOn(":plugins:jvm-abi-gen:test")
-        dependsOn(":plugins:jso:compiler-plugin:test")
         dependsOn(":kotlinx-serialization-compiler-plugin:test")
         dependsOn(":kotlin-lombok-compiler-plugin:test")
         dependsOn(":kotlin-noarg-compiler-plugin:test")

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/JsLoweringPhases.kt

@@ -14,7 +14,6 @@ import org.jetbrains.kotlin.backend.common.lower.inline.LocalClassesInInlineFunc
 import org.jetbrains.kotlin.backend.common.lower.inline.LocalClassesInInlineLambdasLowering
 import org.jetbrains.kotlin.backend.common.lower.loops.ForLoopsLowering
 import org.jetbrains.kotlin.backend.common.phaser.*
-import org.jetbrains.kotlin.config.CommonConfigurationKeys
 import org.jetbrains.kotlin.ir.backend.js.lower.*
 import org.jetbrains.kotlin.ir.backend.js.lower.calls.CallsLowering
 import org.jetbrains.kotlin.ir.backend.js.lower.cleanup.CleanupLowering

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/transformers/irToJs/IrElementToJsExpressionTransformer.kt

@@ -148,10 +148,7 @@ class IrElementToJsExpressionTransformer : BaseIrElementToJsNodeTransformer<JsEx
         assert(obj.kind == ClassKind.OBJECT)
         assert(obj.isEffectivelyExternal()) { "Non external IrGetObjectValue must be lowered" }
 
-        return when {
-            obj.isCompanion && obj.parentAsClass.let { it.isInterface && it.isExternal } -> JsNullLiteral()
-            else -> context.getRefForExternalClass(obj).withSource(expression, context)
-        }
+        return context.getRefForExternalClass(obj).withSource(expression, context)
     }
 
     override fun visitSetField(expression: IrSetField, context: JsGenerationContext): JsExpression {