Task-number: QTCREATORBUG-9597

Change-Id: I726a818c7d4af35dcb4863f74b08cd639a189bdd
Reviewed-by: Daniel Teske <daniel.teske@digia.com>

Rename ModelManagerInterface.(h|cpp) to cppmodelmanagerinterface.(h|cpp).
Rename TypeHierarchyBuilder.(h|cpp) to typehierarchybuilder.(h|cpp).

Change-Id: I035d833fd205d7460819bd0fb7031294359032f9
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

There were quite a few classes using CPlusPlus namespace in the
CppTools plugin. Rename them and do some other small namespace
related coding style fixups.

Change-Id: I093fc1f3fc394fd9923e3f18d5f66522e288f21d
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

Change-Id: Id8676d88ec8f55d0ba1650420fd2e48e6087b18e
Reviewed-by: Eike Ziller <eike.ziller@digia.com>

Change-Id: Ibe4cc69eafd14dab7707862b1068ce1e21b1d8e0
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>

The indexing support for the built-in code model is moved to its own
file. Symbol searching will now call for a searcher through that support
interface, which will create a fully configured and ready-to-go searcher
that can be started in the/a future.

Change-Id: Idc3ee1c7c789a69fa05ee1d42415313dcea94cf8
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>