CompilationDatabase: Support both code models

Extract headers, defines and fileKind from flags in
order to have complete project parts.

Side-effect: better support for MSVC-specific flags.
Change-Id: Iaa1413c91c96c3cf89ddbe76a7a1f0f46c5289c0
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@qt.io>

src/plugins/compilationdatabaseprojectmanager/compilationdatabaseprojectmanagerplugin.cpp

@@ -27,6 +27,7 @@
 
 #include "compilationdatabaseconstants.h"
 #include "compilationdatabaseproject.h"
+#include "compilationdatabasetests.h"
 
 #include <coreplugin/fileiconprovider.h>
 #include <projectexplorer/projectmanager.h>
@@ -52,5 +53,14 @@ void CompilationDatabaseProjectManagerPlugin::extensionsInitialized()
 {
 }
 
+QList<QObject *> CompilationDatabaseProjectManagerPlugin::createTestObjects() const
+{
+    QList<QObject *> tests;
+#ifdef WITH_TESTS
+    tests << new CompilationDatabaseTests;
+#endif
+    return tests;
+}
+
 } // namespace Internal
 } // namespace CompilationDatabaseProjectManager