Have tooltips on the profileconfigwidgets

Task-number: QTCREATORBUG-7571

Change-Id: I881c90ebffd33811893db39937a49a3614384d31
Reviewed-by: hjk <qthjk@ovi.com>
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@nokia.com>

src/plugins/debugger/debuggerprofileconfigwidget.cpp

@@ -67,6 +67,8 @@ DebuggerProfileConfigWidget::DebuggerProfileConfigWidget(ProjectExplorer::Profil
     m_info(pi),
     m_chooser(new Utils::PathChooser)
 {
+    setToolTip(tr("The debugger to use for this target."));
+
     QVBoxLayout *layout = new QVBoxLayout(this);
     layout->setMargin(0);