Messy commit. Testing suff and some improvements to how data is shown.

tests/mygtestutils/PrintTo_Qt.cpp

@@ -0,0 +1,9 @@
+#include "PrintTo_Qt.h"
+
+void PrintTo(const QDateTime &dt, ::std::ostream* os) {
+  *os << dt.toString(Qt::ISODateWithMs).toUtf8().toStdString();
+}
+
+void PrintTo(const QString &s, ::std::ostream* os) {
+  *os << s.toUtf8().toStdString();
+}