Analyze Data Flow: Support cross-language analysis

#KT-16833 Fixed

idea/testData/slicer/inflow/diamondHierarchyJKRootInterfaceFun.java

@@ -0,0 +1,15 @@
+class B implements A {
+    public int foo() {
+        return 2;
+    }
+}
+
+interface C extends A {
+    public int foo();
+}
+
+class D extends B implements C {
+    public int foo() {
+        return 4;
+    }
+}