Turn off inter-project IC when unknown task writes to java output dir

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

@@ -196,8 +196,7 @@ open class A {
     // that is not JavaCompile or KotlinCompile
     @Test
     fun testCompileLibWithGroovy() {
-        val gradleVersion = GradleVersionRequired.Exact("3.5") // With newer versions, Groovy uses separate classes dirs
-        val project = Project("incrementalMultiproject", gradleVersion)
+        val project = Project("incrementalMultiproject")
         project.setupWorkingDir()
         val lib = File(project.projectDir, "lib")
         val libBuildGradle = File(lib, "build.gradle")