QmlDesigner: Add qdebugs for commands

Change-Id: I60bdd5b36749be5092d4dabe486b101d62b3df06
Reviewed-by: Thomas Hartmann <Thomas.Hartmann@digia.com>

share/qtcreator/qml/qmlpuppet/commands/debugoutputcommand.cpp

@@ -30,6 +30,8 @@
 
 #include "debugoutputcommand.h"
 
+#include <QtDebug>
+
 namespace QmlDesigner {
 
 DebugOutputCommand::DebugOutputCommand()
@@ -74,4 +76,11 @@ bool operator ==(const DebugOutputCommand &first, const DebugOutputCommand &seco
             && second.m_text == second.m_text;
 }
 
+QDebug operator <<(QDebug debug, const DebugOutputCommand &command)
+{
+        return debug.nospace() << "DebugOutputCommand("
+                               << "type: " << command.type() << ", "
+                               << "text: " << command.text() << ")";
+}
+
 } // namespace QmlDesigner