Build: remove obsolete compiler arguments

These compiler arguments enable features which are enabled by default in
the current Kotlin anyway.

The only exception is in :compiler:cli which uses an old language
version.

compiler/build.gradle.kts

@@ -12,25 +12,6 @@ val otherCompilerModules = compilerModules.filter { it != path }
 
 val tasksWithWarnings: List<String> by rootProject.extra
 
-val effectSystemEnabled: Boolean by rootProject.extra
-val newInferenceEnabled: Boolean by rootProject.extra
-
-configureFreeCompilerArg(effectSystemEnabled, "-Xeffect-system")
-configureFreeCompilerArg(newInferenceEnabled, "-Xnew-inference")
-configureFreeCompilerArg(true, "-Xuse-mixed-named-arguments")
-
-fun configureFreeCompilerArg(isEnabled: Boolean, compilerArgument: String) {
-    if (isEnabled) {
-        allprojects {
-            tasks.withType<KotlinCompile<*>> {
-                kotlinOptions {
-                    freeCompilerArgs += listOf(compilerArgument)
-                }
-            }
-        }
-    }
-}
-
 val antLauncherJar by configurations.creating
 
 dependencies {

compiler/cli/build.gradle.kts

@@ -60,7 +60,7 @@ tasks.withType<org.jetbrains.kotlin.gradle.dsl.KotlinCompile<*>> {
         languageVersion = "1.3"
         apiVersion = "1.3"
         freeCompilerArgs = freeCompilerArgs - "-progressive" + listOf(
-            "-Xskip-prerelease-check", "-Xsuppress-version-warnings"
+            "-Xskip-prerelease-check", "-Xsuppress-version-warnings", "-Xuse-mixed-named-arguments", "-Xnew-inference"
         )
     }
 }

compiler/fir/tree/build.gradle.kts

@@ -50,12 +50,6 @@ val compileKotlin by tasks
 
 compileKotlin.dependsOn(generateTree)
 
-tasks.withType<org.jetbrains.kotlin.gradle.dsl.KotlinCompile<*>> {
-    kotlinOptions {
-        freeCompilerArgs += "-Xinline-classes"
-    }
-}
-
 if (kotlinBuildProperties.isInJpsBuildIdeaSync) {
     apply(plugin = "idea")
     idea {

compiler/ir/serialization.common/build.gradle.kts

@@ -24,7 +24,6 @@ tasks {
     val compileKotlin by existing(org.jetbrains.kotlin.gradle.tasks.KotlinCompile::class) {
         kotlinOptions {
             freeCompilerArgs += "-Xopt-in=org.jetbrains.kotlin.ir.ObsoleteDescriptorBasedAPI"
-            freeCompilerArgs += "-Xinline-classes"
         }
     }
 }

compiler/tests-common/build.gradle.kts

@@ -74,12 +74,6 @@ dependencies {
     testApiJUnit5()
 }
 
-tasks.withType<org.jetbrains.kotlin.gradle.dsl.KotlinCompile<*>> {
-    kotlinOptions {
-        freeCompilerArgs += "-Xinline-classes"
-    }
-}
-
 sourceSets {
     "main" { }
     "test" { projectDefault() }