Add support for complex numbers to Boost.Hash

[SVN r39983]

test/Jamfile.v2

@@ -33,6 +33,7 @@ test-suite functional/hash
         [ run hash_deque_test.cpp ]
         [ run hash_set_test.cpp ]
         [ run hash_map_test.cpp ]
+        [ run hash_complex_test.cpp ]
         [ run link_test.cpp link_test_2.cpp ]
         [ run link_ext_test.cpp link_no_ext_test.cpp ]
         [ run container_fwd_test.cpp ]