[K/JS] Remove the ability to run Legacy JS backend from the Gradle Plugin

libraries/kotlin.test/js/build.gradle

@@ -18,6 +18,7 @@ compileKotlin2Js {
             "-Xallow-kotlin-package",
             "-opt-in=kotlin.contracts.ExperimentalContracts",
             "-opt-in=kotlin.RequiresOptIn",
+            "-Xforce-deprecated-legacy-compiler-usage"
     ]
     kotlinOptions {
         moduleKind = "umd"
@@ -29,10 +30,10 @@ compileKotlin2Js {
 }
 
 compileTestKotlin2Js {
-    kotlinOptions.freeCompilerArgs = ["-Xallow-kotlin-package"]
     kotlinOptions {
         metaInfo = false
         moduleKind = "umd"
+        freeCompilerArgs = ["-Xallow-kotlin-package", "-Xforce-deprecated-legacy-compiler-usage"]
     }
 }
 

libraries/kotlin.test/js/it/build.gradle

@@ -28,7 +28,10 @@ buildDir = "$projectDir/build"
 
 ["compileKotlin2Js", "compileTestKotlin2Js"].forEach {
     tasks.named(it).configure {
-        kotlinOptions.moduleKind = "commonjs"
+        kotlinOptions {
+            moduleKind = "commonjs"
+            freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+        }
     }
 }
 

libraries/stdlib/js-v1/build.gradle

@@ -135,6 +135,7 @@ compileKotlin2Js {
             "-opt-in=kotlin.ExperimentalMultiplatform",
             "-opt-in=kotlin.contracts.ExperimentalContracts",
             "-XXLanguage:+RangeUntilOperator",
+            "-Xforce-deprecated-legacy-compiler-usage"
         ]
     }
 }
@@ -364,3 +365,7 @@ task runMocha(type: NodeTask, dependsOn: [testClasses, installMocha, ':kotlin-te
 }
 
 test.dependsOn runMocha
+
+tasks.withType(org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile) {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/Kotlin2JsGradlePluginIT.kt

@@ -492,6 +492,7 @@ class Kotlin2JsGradlePluginIT : AbstractKotlin2JsGradlePluginIT(false) {
                         |afterEvaluate {
                         |    tasks.named('compileKotlinJs') {
                         |        kotlinOptions.outputFile = "${'$'}{project.projectDir}/out/out.js"
+                        |        kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
                         |    }
                         |}
                         |

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/both-js-lib-and-app/sample-app-gradle-kotlin-dsl/build.gradle.kts

@@ -25,4 +25,8 @@ kotlin {
             }
         }
     }
-}
+}
+
+tasks.withType<org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile> {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/both-js-lib-and-app/sample-app/build.gradle

@@ -32,4 +32,8 @@ kotlin {
             }
         }
     }
+}
+
+tasks.withType(org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile) {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
 }

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/both-js-lib-and-app/sample-lib-gradle-kotlin-dsl/build.gradle.kts

@@ -40,4 +40,8 @@ publishing {
     repositories {
         maven { setUrl("file://${projectDir.absolutePath.replace('\\', '/')}/repo") }
     }
-}
+}
+
+tasks.withType<org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile> {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/both-js-lib-and-app/sample-lib/build.gradle

@@ -53,4 +53,8 @@ publishing {
     repositories {
         maven { url "file://${projectDir.absolutePath.replace('\\', '/')}/repo" }
     }
-}
+}
+
+tasks.withType(org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile) {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/differentClassloaders/js-app/build.gradle

@@ -28,3 +28,7 @@ if (project.findProperty("mppProjectDependency") == "true") {
     }
 
 }
+
+tasks.withType(org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile) {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/differentClassloaders/mpp-lib/build.gradle

@@ -39,4 +39,8 @@ publishing {
     repositories {
         maven { setUrl("${rootProject.buildDir}/repo") }
     }
-}
+}
+
+tasks.withType(org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile) {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/hierarchical-mpp-js-test/build.gradle.kts

@@ -57,4 +57,8 @@ kotlin {
             }
         }
     }
-}
+}
+
+tasks.withType<org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile> {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/hierarchical-mpp-published-modules/my-app/build.gradle.kts

@@ -87,3 +87,7 @@ kotlin {
         }
     }
 }
+
+tasks.withType<org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile> {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/hierarchical-mpp-published-modules/my-lib-bar/build.gradle.kts

@@ -93,4 +93,8 @@ publishing {
     repositories {
         maven("<localRepo>")
     }
-}
+}
+
+tasks.withType<org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile> {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/hierarchical-mpp-published-modules/my-lib-foo/build.gradle.kts

@@ -105,4 +105,8 @@ publishing {
     repositories {
         maven("<localRepo>")
     }
-}
+}
+
+tasks.withType<org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile> {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/hierarchical-mpp-published-modules/third-party-lib/build.gradle.kts

@@ -54,4 +54,8 @@ publishing {
     repositories {
         maven("<localRepo>")
     }
-}
+}
+
+tasks.withType<org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile> {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/hierarchical-mpp-with-js-project-dependency/my-app/build.gradle.kts

@@ -41,3 +41,7 @@ kotlin {
         }
     }
 }
+
+tasks.withType<org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile> {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/hierarchical-mpp-with-js-project-dependency/my-lib-foo/build.gradle.kts

@@ -27,3 +27,7 @@ kotlin {
         }
     }
 }
+
+tasks.withType<org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile> {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/hierarchical-mpp-with-js-published-modules/my-lib-foo/build.gradle.kts

@@ -35,4 +35,8 @@ publishing {
     repositories {
         maven("<localRepo>")
     }
-}
+}
+
+tasks.withType<org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile> {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/hierarchical-mpp-with-js-published-modules/third-party-lib/build.gradle.kts

@@ -37,4 +37,8 @@ publishing {
             from(components["kotlin"])
         }
     }
-}
+}
+
+tasks.withType<org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile> {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/instantExecutionToJs/build.gradle

@@ -26,6 +26,8 @@ tasks.named("compileKotlinJs", Kotlin2JsCompile) {
     it.kotlinOptions.outputFile = "${buildDir}/kotlin2js/main/module.js"
     if (jsUseIrBackend) {
         it.kotlinOptions.freeCompilerArgs += ["-Xir-produce-klib-dir", "-Xir-only"]
+    } else {
+        it.kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
     }
 }
 
@@ -33,5 +35,7 @@ tasks.named("compileTestKotlinJs", Kotlin2JsCompile) {
     it.kotlinOptions.outputFile = "${buildDir}/kotlin2js/test/module-tests.js"
     if (jsUseIrBackend) {
         it.kotlinOptions.freeCompilerArgs += ["-Xir-produce-js"]
+    } else {
+        it.kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
     }
 }

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/js-dynamic-webpack-config-d/build.gradle.kts

@@ -33,4 +33,7 @@ tasks.named("browserTest") {
 
 tasks.withType<org.jetbrains.kotlin.gradle.targets.js.webpack.KotlinWebpack> {
     dependsOn("foo")
-}
+}
+tasks.withType<org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile> {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kotlin-js-both-mode-with-tests/build.gradle.kts

@@ -16,4 +16,8 @@ kotlin {
         nodejs {
         }
     }
-}
+}
+
+tasks.withType<org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile> {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kotlin-js-browser-project/app/build.gradle.kts

@@ -67,4 +67,11 @@ rootProject.plugins.withType<org.jetbrains.kotlin.gradle.targets.js.nodejs.NodeJ
         workingDir = File("${buildDir}").resolve("distributions")
         args("./${project.name}.js")
     }
-}
+}
+
+tasks.named<org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile>("compileKotlinJs") {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}
+tasks.named<org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile>("compileTestKotlinJs") {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kotlin-js-browser-project/base/build.gradle.kts

@@ -17,4 +17,11 @@ kotlin {
         browser {
         }
     }
-}
+}
+
+tasks.named<org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile>("compileKotlinJsLegacy") {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}
+tasks.named<org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile>("compileTestKotlinJsLegacy") {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kotlin-js-browser-project/lib/build.gradle.kts

@@ -13,4 +13,11 @@ kotlin {
         browser {
         }
     }
-}
+}
+
+tasks.named<org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile>("compileKotlinJs") {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}
+tasks.named<org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile>("compileTestKotlinJs") {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kotlin-js-ir-ic-multiple-artifacts/app/build.gradle.kts

@@ -28,3 +28,6 @@ kotlin {
             }
     }
 }
+tasks.withType<org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile> {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kotlin-js-ir-ic-multiple-artifacts/lib/build.gradle.kts

@@ -35,4 +35,7 @@ kotlin {
             }
         }
     }
-}
+}
+tasks.withType<org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile> {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kotlin-js-nodejs-custom-node-module/build.gradle

@@ -24,4 +24,8 @@ kotlin {
             }
         }
     }
-}
+}
+
+tasks.withType(org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile) {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kotlin-js-nodejs-project/build.gradle

@@ -19,4 +19,11 @@ kotlin {
         nodejs {
         }
     }
-}
+}
+
+tasks.named("compileKotlinJs", org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile) {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}
+tasks.named("compileTestKotlinJs", org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile) {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kotlin-js-plugin-project/build.gradle.kts

@@ -56,4 +56,8 @@ publishing {
     repositories {
         maven("$buildDir/repo")
     }
-}
+}
+
+tasks.withType<org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile> {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kotlin-js-test-webpack-config/build.gradle.kts

@@ -64,4 +64,8 @@ kotlin {
             }
         }
     }
-}
+}
+
+tasks.withType<org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile> {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kotlin2JsICProject/app/build.gradle

@@ -19,4 +19,8 @@ kotlin {
         }
         binaries.executable()
     }
-}
+}
+
+tasks.withType(org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile) {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kotlin2JsICProject/lib/build.gradle

@@ -17,4 +17,8 @@ kotlin {
 
         }
     }
-}
+}
+
+tasks.withType(org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile) {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kotlin2JsInternalTest/build.gradle

@@ -25,4 +25,8 @@ kotlin {
 
         }
     }
-}
+}
+
+tasks.withType(org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile) {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kotlin2JsModuleKind/build.gradle

@@ -61,4 +61,8 @@ build.doLast {
     }
 }
 
+tasks.withType(org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile) {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}
+
 runRhino.dependsOn build

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kotlin2JsProjectWithSourceMap/build.gradle.kts

@@ -35,6 +35,10 @@ project("lib") {
             browser()
         }
     }
+
+    tasks.withType<KotlinJsCompile>() {
+        kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+    }
 }
 
 project("app") {
@@ -49,6 +53,9 @@ project("app") {
     }
 
     tasks.withType<KotlinJsCompile>() {
-        kotlinOptions.sourceMap = true
+        kotlinOptions {
+            sourceMap = true
+            freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+        }
     }
 }

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kotlin2JsProjectWithTests/build.gradle

@@ -36,4 +36,6 @@ if (project.findProperty("kotlin.js.useIrBackend")?.toBoolean() == true) {
     compileKotlin2Js.kotlinOptions.outputFile = "${buildDir}/kotlin2js/main/"
 } else {
     compileKotlin2Js.kotlinOptions.outputFile = "${buildDir}/kotlin2js/main/module.js"
+    compileKotlin2Js.kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+    compileTestKotlin2Js.kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
 }

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kt-27059-pom-rewriting/js-app/build.gradle

@@ -43,3 +43,7 @@ publishing {
         maven { setUrl("${rootProject.buildDir}/repo") }
     }
 }
+
+tasks.withType(org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile) {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kt-27059-pom-rewriting/mpp-lib/build.gradle

@@ -39,4 +39,8 @@ publishing {
     repositories {
         maven { setUrl("${rootProject.buildDir}/repo") }
     }
-}
+}
+
+tasks.withType(org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile) {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/new-mpp-android/app/build.gradle

@@ -75,3 +75,7 @@ task printCompilerPluginOptions {
         }
     }
 }
+
+tasks.withType(org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile) {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/new-mpp-android/lib/build.gradle

@@ -93,3 +93,7 @@ publishing {
         }
 	}
 }
+
+tasks.withType(org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile) {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/new-mpp-js-dce/libraryProject/build.gradle

@@ -33,3 +33,8 @@ nodeJsJar {
 }
 
 nodeJsJar.dependsOn(compileKotlinNodeJs)
+
+tasks.withType(org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile) {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}
+

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/new-mpp-js-dce/mainProject/build.gradle

@@ -42,6 +42,10 @@ tasks.withType(org.jetbrains.kotlin.gradle.tasks.KotlinJsDce).configureEach {
     destinationDirectory = project.layout.buildDirectory.dir("kotlin-js-min")
 }
 
+tasks.withType(org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile) {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}
+
 task runRhino(type: JavaExec) {
     dependsOn(tasks.named('processDceBrowserKotlinJs'))
     classpath = kotlin.targets.browser.compilations.main.runtimeDependencyFiles

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/new-mpp-js-tests/build.gradle.kts

@@ -23,4 +23,8 @@ kotlin {
 
     js("server")
     js("client")
-}
+}
+
+tasks.withType<org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile> {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/new-mpp-lib-and-app/sample-app/build.gradle

@@ -92,3 +92,7 @@ task resolveRuntimeDependencies(type: DefaultTask) {
         configurations[configName].resolve()
     }
 }
+
+tasks.withType(org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile) {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/new-mpp-lib-and-app/sample-lib-gradle-kotlin-dsl/build.gradle.kts

@@ -64,4 +64,8 @@ afterEvaluate {
             tasks["assemble"].dependsOn(compileKotlinTask)
         }
     }
-}
+}
+
+tasks.withType<org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile> {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/new-mpp-lib-and-app/sample-lib/build.gradle

@@ -120,4 +120,8 @@ afterEvaluate {
             assemble.dependsOn compileKotlinTask
         }
     }
-}
+}
+
+tasks.withType(org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile) {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/npm-dependencies/build.gradle.kts

@@ -36,4 +36,8 @@ kotlin.sourceSets {
 
 kotlin.target {
     nodejs()
-}
+}
+
+tasks.withType<org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile> {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/simple-js-executable/build.gradle.kts

@@ -15,4 +15,8 @@ kotlin {
         binaries.executable()
         nodejs()
     }
-}
+}
+
+tasks.withType<org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile> {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/simple-js-library/build.gradle.kts

@@ -24,3 +24,7 @@ kotlin {
         }
     }
 }
+
+tasks.withType<org.jetbrains.kotlin.gradle.dsl.KotlinJsCompile> {
+    kotlinOptions.freeCompilerArgs += "-Xforce-deprecated-legacy-compiler-usage"
+}

libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/tasks/Kotlin2JsCompile.kt

@@ -274,10 +274,6 @@ abstract class Kotlin2JsCompile @Inject constructor(
 
         args.friendModules = friendDependencies.files.joinToString(File.pathSeparator) { it.absolutePath }
 
-        if (!isIrBackendEnabled()) {
-            args.forceDeprecatedLegacyCompilerUsage = true
-        }
-
         logger.kotlinDebug("compiling with args ${ArgumentUtils.convertArgumentsToStringList(args)}")
 
         val gradlePrintingMessageCollector = GradlePrintingMessageCollector(logger, args.allWarningsAsErrors)

repo/gradle-settings-conventions/gradle.properties

@@ -2,4 +2,4 @@ kotlin.build.gradlePlugin.version=0.0.39
 kotlin.options.suppressFreeCompilerArgsModificationWarning=true
 cacheRedirectorEnabled=true
 # Should be in sync with ":kotlin-daemon-config" project convention script configuration
-kotlin.daemon.jvmargs=-Xmx3g -Dkotlin.js.compiler.legacy.force_enabled=true
+kotlin.daemon.jvmargs=-Xmx3g

repo/gradle-settings-conventions/kotlin-daemon-config/src/main/kotlin/kotlin-daemon-config.settings.gradle.kts

@@ -5,12 +5,7 @@ gradle.afterProject {
     plugins.withType<KotlinBasePlugin> {
         tasks.withType<CompileUsingKotlinDaemon>().configureEach {
             // Should be in sync with 'gradle-settings-conventions/gradle.properties'
-            kotlinDaemonJvmArguments.set(
-                listOf(
-                    "-Xmx3g",
-                    "-Dkotlin.js.compiler.legacy.force_enabled=true"
-                )
-            )
+            kotlinDaemonJvmArguments.set(listOf("-Xmx3g"))
         }
     }
 }