added additional test case with trivial circular dependencies

testprograms/testcircles/A.java

+package A;
+
+class A{
+ B b=null;
+}

testprograms/testcircles/B.java

+package B;
+
+class B{
+ C c=null;
+ D d=null;
+}

testprograms/testcircles/C.java

+package C;
+
+class C{
+ B b=null;
+}

testprograms/testcircles/D.java

+package D;
+
+class D{
+ E e=null;
+ G g=null;
+}

testprograms/testcircles/E.java

+package E;
+
+class E{
+ F f=null;
+}

testprograms/testcircles/F.java

+package F;
+
+class F{
+ D d=null;
+}

testprograms/testcircles/G.java

+package G;
+
+class G{
+ G g=null;
+}