Problem was with cyclic recurrence.
To solve it we need to check if derived class is different class than its base class.
Keep completion corrected.
Include some unit tests when base class has the same name as derived.

Task-number: QTCREATORBUG-7887
Change-Id: I7973c0b06e3b62d2da3d06048f4327d18a0b8011
Reviewed-by: hjk <qthjk@ovi.com>

This fixes one of the issues mentioned in the report below.
THe other part will come in a separate patch.

Task-number: QTCREATORBUG-7730

Change-Id: I9f56a9bcec8a881dab3ab60f40c5b71f296466da
Reviewed-by: Roberto Raggi <roberto.raggi@nokia.com>

This fixes a variety of issues regarding class completion
when templates are used as base classes. The test cases
show examples.

Task-number: QTCREATORBUG-4357
Change-Id: I764d5ce817a78e1b19336e5beab758ca9e10f34b
Reviewed-by: Roberto Raggi <roberto.raggi@nokia.com>

More uniform.

Change-Id: I1c6057981f4c2b3170a4e69f0674fe4caf1143a2
Reviewed-by: Robert Loehning <robert.loehning@nokia.com>

* You now get completion for std::vector<int>::[complete].
* Also added a test.

Conflicts:
	src/plugins/cpptools/cppcompletion_test.cpp
	src/plugins/cpptools/cpptoolsplugin.h

Change-Id: I596ebf6bd18ec9a347113f8d162cc124c8a0d6b4
Reviewed-by: hjk <qthjk@ovi.com>