Test for completion of kotlin binaries in java.

idea/testData/completion/injava/compiled/ClassesFromNamespace.java

@@ -0,0 +1,14 @@
+public class Testing {
+    public static void test() {
+        mockLib.foo.<caret>
+    }
+}
+
+// note: "NUMBER" check also assures that FooPackage$src$ classes are not visible
+
+// EXIST: LibClass
+// EXIST: LibTrait
+// EXIST: LibEnum
+// EXIST: LibObject
+// EXIST: FooPackage
+// NUMBER: 5