[Gradle, JS] KT-37207 Add constructor fot NpmDependency with only file

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/npm/NpmDependency.kt

@@ -16,6 +16,7 @@ import org.gradle.api.internal.artifacts.dependencies.SelfResolvingDependencyInt
 import org.gradle.api.tasks.TaskDependency
 import org.gradle.internal.component.local.model.DefaultLibraryBinaryIdentifier
 import org.jetbrains.kotlin.gradle.targets.js.nodejs.NodeJsRootPlugin
+import org.jetbrains.kotlin.gradle.targets.js.npm.NpmProject.Companion.PACKAGE_JSON
 import org.jetbrains.kotlin.gradle.targets.js.npm.resolved.KotlinCompilationNpmResolution
 import java.io.File
 
@@ -39,6 +40,15 @@ data class NpmDependency(
         "$FILE_VERSION_PREFIX${directory.canonicalPath}"
     )
 
+    constructor(
+        project: Project,
+        directory: File
+    ) : this(
+        project,
+        moduleName(directory),
+        directory
+    )
+
     enum class Scope {
         NORMAL,
         DEV,
@@ -136,4 +146,14 @@ data class NpmDependency(
     override fun getReason(): String? = reason
 }
 
+private fun moduleName(directory: File): String {
+    val packageJson = directory.resolve(PACKAGE_JSON)
+
+    check(!packageJson.isFile) {
+        "There is no NPM module in $directory. Declare valid $PACKAGE_JSON in it."
+    }
+
+    return fromSrcPackageJson(packageJson)!!.name
+}
+
 const val FILE_VERSION_PREFIX = "file:"