[Gradle, JS] Implement own IncrementalSyncTask

libraries/tools/kotlin-gradle-plugin-api/api/kotlin-gradle-plugin-api.api

@@ -1484,6 +1484,16 @@ public abstract interface class org/jetbrains/kotlin/gradle/tasks/CompileUsingKo
 	public abstract fun getUseDaemonFallbackStrategy ()Lorg/gradle/api/provider/Property;
 }
 
+public abstract interface class org/jetbrains/kotlin/gradle/tasks/IncrementalSyncTask : org/gradle/api/Task {
+	public abstract fun getDestinationDir ()Ljava/io/File;
+	public abstract fun getDestinationDirectory ()Lorg/gradle/api/provider/Property;
+	public abstract fun getFrom ()Lorg/gradle/api/file/ConfigurableFileCollection;
+}
+
+public final class org/jetbrains/kotlin/gradle/tasks/IncrementalSyncTask$DefaultImpls {
+	public static fun getDestinationDir (Lorg/jetbrains/kotlin/gradle/tasks/IncrementalSyncTask;)Ljava/io/File;
+}
+
 public abstract interface class org/jetbrains/kotlin/gradle/tasks/Kapt : org/jetbrains/kotlin/gradle/tasks/BaseKapt {
 	public abstract fun getAddJdkClassesToClasspath ()Lorg/gradle/api/provider/Property;
 	public abstract fun getKaptJars ()Lorg/gradle/api/file/ConfigurableFileCollection;

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

@@ -0,0 +1,24 @@
+package org.jetbrains.kotlin.gradle.tasks
+
+import org.gradle.api.Task
+import org.gradle.api.file.ConfigurableFileCollection
+import org.gradle.api.provider.Property
+import org.gradle.api.tasks.*
+import org.gradle.work.NormalizeLineEndings
+import java.io.File
+
+interface IncrementalSyncTask : Task {
+    @get:InputFiles
+    @get:NormalizeLineEndings
+    @get:IgnoreEmptyDirectories
+    @get:SkipWhenEmpty
+    val from: ConfigurableFileCollection
+
+    @get:OutputDirectory
+    val destinationDirectory: Property<File>
+
+    @get:Internal
+    @Deprecated("Use destinationDirProperty with Provider API", ReplaceWith("destinationDirProperty.get()"))
+    val destinationDir: File
+        get() = destinationDirectory.get()
+}