Refactoring: use same module name as Intellij

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

@@ -37,6 +37,7 @@ class KotlinGradleIT: BaseGradleIT() {
 
         project.build("build") {
             assertSuccessful()
+            assertFileExists("build/classes/main/META-INF/kotlinProject_main.kotlin_module")
             assertReportExists()
             assertContains(":compileKotlin", ":compileTestKotlin")
         }

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kotlinProject/src/main/kotlin/dummyUtil.kt

@@ -0,0 +1,3 @@
+package demo
+
+fun dummyFun() {}