Add tests for lookups to declarations form Java

jps-plugin/testData/incremental/lookupTracker/java/bar/C.java

@@ -0,0 +1,16 @@
+package bar;
+
+import foo.I;
+
+public class C implements I {
+    @Override
+    public void ifunc() {}
+
+    public int field = 1;
+    public void func() {}
+    public class B {}
+
+    public static String sfield = "";
+    public static void sfunc() {}
+    public static class S {}
+}