CDB: Enable "Separate Window" format for standard strings.

- Always retrieve memory for std::strings.
- Enable type format.

Change-Id: I7bd00adbbeff0c4cc380b3ec078df408440302b4
Reviewed-by: hjk <qthjk@ovi.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>

src/plugins/debugger/cdb/cdbengine.cpp

@@ -632,6 +632,7 @@ void CdbEngine::setupEngine()
     wh->addTypeFormats("QString *", stringFormats);
     wh->addTypeFormats("QByteArray", stringFormats);
     wh->addTypeFormats("QByteArray *", stringFormats);
+    wh->addTypeFormats("std__basic_string", stringFormats);  // Python dumper naming convention for std::[w]string
 }
 
 bool CdbEngine::launchCDB(const DebuggerStartParameters &sp, QString *errorMessage)