[Gradle, JS] Add tolerance for NodeJsExec inputFileProperty

- no error if it is not present

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/nodejs/NodeJsExec.kt

@@ -9,11 +9,9 @@ import org.gradle.api.file.RegularFileProperty
 import org.gradle.api.tasks.*
 import org.jetbrains.kotlin.gradle.plugin.mpp.KotlinJsCompilation
 import org.jetbrains.kotlin.gradle.targets.js.RequiredKotlinJsDependency
-import org.jetbrains.kotlin.gradle.targets.js.ir.KotlinJsIrCompilation
 import org.jetbrains.kotlin.gradle.targets.js.npm.RequiresNpmDependencies
 import org.jetbrains.kotlin.gradle.targets.js.npm.npmProject
 import org.jetbrains.kotlin.gradle.tasks.registerTask
-import org.jetbrains.kotlin.gradle.utils.getValue
 import org.jetbrains.kotlin.gradle.utils.newFileProperty
 
 open class NodeJsExec : AbstractExecTask<NodeJsExec>(NodeJsExec::class.java), RequiresNpmDependencies {
@@ -25,7 +23,7 @@ open class NodeJsExec : AbstractExecTask<NodeJsExec>(NodeJsExec::class.java), Re
 
     init {
         onlyIf {
-            inputFileProperty.asFile.map {
+            !inputFileProperty.isPresent || inputFileProperty.asFile.map {
                 it.exists()
             }.get()
         }
@@ -50,6 +48,10 @@ open class NodeJsExec : AbstractExecTask<NodeJsExec>(NodeJsExec::class.java), Re
         }
 
     override fun exec() {
+        if (inputFileProperty.isPresent) {
+            args(inputFileProperty.asFile.get())
+        }
+
         if (sourceMapStackTraces) {
             val sourceMapSupportArgs = mutableListOf(
                 "--require",
@@ -84,8 +86,6 @@ open class NodeJsExec : AbstractExecTask<NodeJsExec>(NodeJsExec::class.java), Re
                 it.dependsOn(nodeJs.npmInstallTask, compileKotlinTask)
 
                 it.configuration()
-
-                it.args(it.inputFileProperty.asFile.get())
             }
         }
     }