CppEditor/CppTools: Introduce Test{Case,Document}

Move common functionality of the 12 test classes into base classes.

Change-Id: If64d3cec876807ac6f991151189860a99b8ff4ca
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

src/plugins/coreplugin/testdatadir.h

@@ -35,6 +35,14 @@
 
 #include <QString>
 
+#define QTC_DECLARE_MYTESTDATADIR(PATH)                                          \
+    class MyTestDataDir : public Core::Internal::Tests::TestDataDir              \
+    {                                                                            \
+    public:                                                                      \
+        MyTestDataDir(const QString &testDataDirectory = QString())              \
+            : TestDataDir(QLatin1String(SRCDIR "/" PATH) + testDataDirectory) {} \
+    };
+
 namespace Core {
 namespace Internal {
 namespace Tests {