CMake: Set a initial displayName for projects

We set the display name for cmake projects based on the projects's
name in the cdb file. The parsing of that happens quite late, so
we need to set a fallback displayname in the ctor.

Task-number: QTCREATORBUG-9641

Change-Id: Iabfef7a3cc9710e6ba04523845d4142a89493011
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>

src/plugins/cmakeprojectmanager/cmakeproject.cpp

@@ -111,6 +111,8 @@ CMakeProject::CMakeProject(CMakeManager *manager, const QString &fileName)
     setProjectContext(Core::Context(CMakeProjectManager::Constants::PROJECTCONTEXT));
     setProjectLanguages(Core::Context(ProjectExplorer::Constants::LANG_CXX));
 
+    m_projectName = QFileInfo(fileName).absoluteDir().dirName();
+
     m_file = new CMakeFile(this, fileName);
 
     connect(this, SIGNAL(buildTargetsChanged()),