[Gradle, JS] Use yarn.lock name by default

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/Kotlin2JsGradlePluginIT.kt

@@ -22,7 +22,6 @@ import org.jetbrains.kotlin.gradle.tasks.USING_JS_IR_BACKEND_MESSAGE
 import org.jetbrains.kotlin.gradle.testbase.*
 import org.jetbrains.kotlin.gradle.util.jsCompilerType
 import org.jetbrains.kotlin.gradle.util.normalizePath
-import org.junit.Test
 import org.junit.jupiter.api.Disabled
 import org.junit.jupiter.api.DisplayName
 import org.junit.jupiter.api.condition.DisabledIf
@@ -1052,8 +1051,13 @@ class GeneralKotlin2JsGradlePluginIT : KGPBaseTest() {
         project("cleanTask", gradleVersion) {
             buildGradle.modify(::transformBuildScriptWithPluginsDsl)
             build("assemble") {
-                assertFileExists(projectPath.resolve("kotlin-yarn.lock"))
-                assert(projectPath.resolve("kotlin-yarn.lock").readText() == projectPath.resolve("build/js/yarn.lock").readText())
+                assertFileExists(projectPath.resolve("kotlin-js-store").resolve("yarn.lock"))
+                assert(
+                    projectPath
+                        .resolve("kotlin-js-store")
+                        .resolve("yarn.lock")
+                        .readText() == projectPath.resolve("build/js/yarn.lock").readText()
+                )
             }
         }
     }

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/yarn/YarnRootExtension.kt

@@ -39,8 +39,8 @@ open class YarnRootExtension(
     var command by Property("yarn")
 
     var download by Property(true)
-    var lockFileName by Property("kotlin-yarn.lock")
-    var lockFileDirectory: File by Property(project.rootDir)
+    var lockFileName by Property("yarn.lock")
+    var lockFileDirectory: File by Property(project.rootDir.resolve("kotlin-js-store"))
 
     var ignoreScripts by Property(true)