Make useIR available from Gradle KotlinJvmOptions

compiler/cli/cli-common/src/org/jetbrains/kotlin/cli/common/arguments/K2JVMCompilerArguments.kt

@@ -69,6 +69,7 @@ class K2JVMCompilerArguments : CommonCompilerArguments() {
 
     // Advanced options
 
+    @GradleOption(DefaultValues.BooleanFalseDefault::class)
     @Argument(value = "-Xuse-ir", description = "Use the IR backend")
     var useIR: Boolean by FreezableVar(false)
 

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

@@ -46,4 +46,10 @@ interface KotlinJvmOptions  : org.jetbrains.kotlin.gradle.dsl.KotlinCommonOption
      * Default value: true
      */
      var noStdlib: kotlin.Boolean
+
+    /**
+     * Use the IR backend
+     * Default value: false
+     */
+     var useIR: kotlin.Boolean
 }

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

@@ -88,6 +88,13 @@ internal abstract class KotlinJvmOptionsBase : org.jetbrains.kotlin.gradle.dsl.K
             noStdlibField = value
         }
 
+    private var useIRField: kotlin.Boolean? = null
+    override var useIR: kotlin.Boolean
+        get() = useIRField ?: false
+        set(value) {
+            useIRField = value
+        }
+
     internal open fun updateArguments(args: org.jetbrains.kotlin.cli.common.arguments.K2JVMCompilerArguments) {
         allWarningsAsErrorsField?.let { args.allWarningsAsErrors = it }
         suppressWarningsField?.let { args.suppressWarnings = it }
@@ -101,6 +108,7 @@ internal abstract class KotlinJvmOptionsBase : org.jetbrains.kotlin.gradle.dsl.K
         noJdkField?.let { args.noJdk = it }
         noReflectField?.let { args.noReflect = it }
         noStdlibField?.let { args.noStdlib = it }
+        useIRField?.let { args.useIR = it }
     }
 }
 
@@ -117,4 +125,5 @@ internal fun org.jetbrains.kotlin.cli.common.arguments.K2JVMCompilerArguments.fi
     noJdk = false
     noReflect = true
     noStdlib = true
+    useIR = false
 }