Temporary workaround for gradle issue: wrong navigation for included plugin source code

https://github.com/gradle/gradle/issues/13783
^KT-39522

idea/testData/script/definition/navigation/includedPluginProblem/depModule/test/custom.kt

@@ -0,0 +1,7 @@
+package test
+
+object KObject {
+    fun foo() {
+
+    }
+}