ProjectPart: Add meta information

Add displayname and project file path and a pointer back to the
project.

Change-Id: Ic9a18f52a6291493bd3a95fd3456ed0e1a3c63e3
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

src/plugins/cmakeprojectmanager/cmakeproject.cpp

@@ -337,6 +337,9 @@ bool CMakeProject::parseCMakeLists()
         pinfo.clearProjectParts();
 
         CppTools::ProjectPart::Ptr part(new CppTools::ProjectPart);
+        part->project = this;
+        part->displayName = displayName();
+        part->projectFile = projectFilePath();
 
         part->evaluateToolchain(tc,
                                 cxxflags,