Add support for gradle option useFir and appropriate property...

`kotlin.useFir`

compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/CommonCompilerArguments.kt

@@ -304,6 +304,7 @@ abstract class CommonCompilerArguments : CommonToolArguments() {
     )
     var checkStickyPhaseConditions: Boolean by FreezableVar(false)
 
+    @GradleOption(DefaultValues.BooleanFalseDefault::class)
     @Argument(
         value = "-Xuse-fir",
         description = "Compile using Front-end IR. Warning: this feature is far from being production-ready"

libraries/tools/kotlin-gradle-plugin-api/src/main/kotlin/org/jetbrains/kotlin/gradle/dsl/KotlinCommonOptions.kt

@@ -17,4 +17,10 @@ interface KotlinCommonOptions  : org.jetbrains.kotlin.gradle.dsl.KotlinCommonToo
      * Default value: null
      */
      var languageVersion: kotlin.String?
+
+    /**
+     * Compile using Front-end IR. Warning: this feature is far from being production-ready
+     * Default value: false
+     */
+     var useFir: kotlin.Boolean
 }

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

@@ -231,7 +231,8 @@ abstract class BaseGradleIT {
         val jsCompilerType: KotlinJsCompilerType? = null,
         val configurationCache: Boolean = false,
         val configurationCacheProblems: ConfigurationCacheProblems = ConfigurationCacheProblems.FAIL,
-        val warningMode: WarningMode = WarningMode.Fail
+        val warningMode: WarningMode = WarningMode.Fail,
+        val useFir: Boolean = false
     )
 
     enum class ConfigurationCacheProblems {
@@ -907,6 +908,10 @@ Finished executing task ':$taskName'|
                 add("-Pkotlin.js.compiler=$it")
             }
 
+            if (options.useFir) {
+                add("-Pkotlin.useFir=true")
+            }
+
             add("-Dorg.gradle.unsafe.configuration-cache=${options.configurationCache}")
             add("-Dorg.gradle.unsafe.configuration-cache-problems=${options.configurationCacheProblems.name.toLowerCase()}")
 

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/dsl/KotlinJsOptionsBase.kt

@@ -39,6 +39,13 @@ internal abstract class KotlinJsOptionsBase : org.jetbrains.kotlin.gradle.dsl.Ko
             languageVersionField = value
         }
 
+    private var useFirField: kotlin.Boolean? = null
+    override var useFir: kotlin.Boolean
+        get() = useFirField ?: false
+        set(value) {
+            useFirField = value
+        }
+
     private var friendModulesDisabledField: kotlin.Boolean? = null
     override var friendModulesDisabled: kotlin.Boolean
         get() = friendModulesDisabledField ?: false
@@ -122,6 +129,7 @@ internal abstract class KotlinJsOptionsBase : org.jetbrains.kotlin.gradle.dsl.Ko
         verboseField?.let { args.verbose = it }
         apiVersionField?.let { args.apiVersion = it }
         languageVersionField?.let { args.languageVersion = it }
+        useFirField?.let { args.useFir = it }
         friendModulesDisabledField?.let { args.friendModulesDisabled = it }
         mainField?.let { args.main = it }
         metaInfoField?.let { args.metaInfo = it }
@@ -142,6 +150,7 @@ internal fun org.jetbrains.kotlin.cli.common.arguments.K2JSCompilerArguments.fil
     verbose = false
     apiVersion = null
     languageVersion = null
+    useFir = false
     friendModulesDisabled = false
     main = "call"
     metaInfo = true

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/dsl/KotlinJvmOptionsBase.kt

@@ -39,6 +39,13 @@ internal abstract class KotlinJvmOptionsBase : org.jetbrains.kotlin.gradle.dsl.K
             languageVersionField = value
         }
 
+    private var useFirField: kotlin.Boolean? = null
+    override var useFir: kotlin.Boolean
+        get() = useFirField ?: false
+        set(value) {
+            useFirField = value
+        }
+
     private var includeRuntimeField: kotlin.Boolean? = null
     override var includeRuntime: kotlin.Boolean
         get() = includeRuntimeField ?: false
@@ -115,6 +122,7 @@ internal abstract class KotlinJvmOptionsBase : org.jetbrains.kotlin.gradle.dsl.K
         verboseField?.let { args.verbose = it }
         apiVersionField?.let { args.apiVersion = it }
         languageVersionField?.let { args.languageVersion = it }
+        useFirField?.let { args.useFir = it }
         includeRuntimeField?.let { args.includeRuntime = it }
         javaParametersField?.let { args.javaParameters = it }
         jdkHomeField?.let { args.jdkHome = it }
@@ -134,6 +142,7 @@ internal fun org.jetbrains.kotlin.cli.common.arguments.K2JVMCompilerArguments.fi
     verbose = false
     apiVersion = null
     languageVersion = null
+    useFir = false
     includeRuntime = false
     javaParameters = false
     jdkHome = null

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/dsl/KotlinMultiplatformCommonOptionsBase.kt

@@ -39,12 +39,20 @@ internal abstract class KotlinMultiplatformCommonOptionsBase : org.jetbrains.kot
             languageVersionField = value
         }
 
+    private var useFirField: kotlin.Boolean? = null
+    override var useFir: kotlin.Boolean
+        get() = useFirField ?: false
+        set(value) {
+            useFirField = value
+        }
+
     internal open fun updateArguments(args: org.jetbrains.kotlin.cli.common.arguments.K2MetadataCompilerArguments) {
         allWarningsAsErrorsField?.let { args.allWarningsAsErrors = it }
         suppressWarningsField?.let { args.suppressWarnings = it }
         verboseField?.let { args.verbose = it }
         apiVersionField?.let { args.apiVersion = it }
         languageVersionField?.let { args.languageVersion = it }
+        useFirField?.let { args.useFir = it }
     }
 }
 
@@ -54,4 +62,5 @@ internal fun org.jetbrains.kotlin.cli.common.arguments.K2MetadataCompilerArgumen
     verbose = false
     apiVersion = null
     languageVersion = null
+    useFir = false
 }

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/plugin/KotlinProperties.kt

@@ -16,7 +16,6 @@ import org.jetbrains.kotlin.gradle.plugin.statistics.KotlinBuildStatsService
 import org.jetbrains.kotlin.gradle.targets.js.dukat.ExternalsOutputFormat
 import org.jetbrains.kotlin.gradle.targets.js.dukat.ExternalsOutputFormat.Companion.externalsOutputFormatProperty
 import org.jetbrains.kotlin.gradle.targets.js.webpack.WebpackMajorVersion
-import org.jetbrains.kotlin.gradle.targets.js.webpack.WebpackMajorVersion.Companion.warningMessage
 import org.jetbrains.kotlin.gradle.targets.native.DisabledNativeTargetsReporter
 import org.jetbrains.kotlin.gradle.tasks.AbstractKotlinCompile
 import org.jetbrains.kotlin.gradle.tasks.Kotlin2JsCompile
@@ -37,6 +36,11 @@ internal fun PropertiesProvider.mapKotlinTaskProperties(task: AbstractKotlinComp
         usePreciseJavaTracking?.let {
             task.usePreciseJavaTracking = it
         }
+        useFir?.let {
+            if (it == true) {
+                task.kotlinOptions.useFir = true
+            }
+        }
     }
 
     if (task is Kotlin2JsCompile) {
@@ -90,6 +94,9 @@ internal class PropertiesProvider private constructor(private val project: Proje
     val usePreciseJavaTracking: Boolean?
         get() = booleanProperty("kotlin.incremental.usePreciseJavaTracking")
 
+    val useFir: Boolean?
+        get() = booleanProperty("kotlin.useFir")
+
     private val useFallbackCompilerSearchPropName = "kotlin.useFallbackCompilerSearch"
 
     @Deprecated("Unsupported and will be removed in next major releases")

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/native/KotlinNativeCompilation.kt

@@ -42,6 +42,10 @@ abstract class AbstractKotlinNativeCompilation(
             get() = languageSettings.languageVersion
             set(value) { languageSettings.languageVersion = value }
 
+        override var useFir: Boolean
+            get() = false
+            set(@Suppress("UNUSED_PARAMETER") value) {}
+
         override var allWarningsAsErrors: Boolean = false
         override var suppressWarnings: Boolean = false
         override var verbose: Boolean = false