debugger: implement an option to stop on qWarnings (gdb only)

Task-number: QTCREATORBUG-842
Change-Id: If1a7d0cd9dfaa5b6b4915fa67a150683cf6786b9
Reviewed-on: http://codereview.qt.nokia.com/226
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: hjk <qthjk@ovi.com>

src/plugins/debugger/gdb/gdboptionspage.cpp

@@ -94,6 +94,8 @@ QWidget *GdbOptionsPage::createPage(QWidget *parent)
         m_ui->checkBoxTargetAsync);
     m_group.insert(debuggerCore()->action(AdjustBreakpointLocations),
         m_ui->checkBoxAdjustBreakpointLocations);
+    m_group.insert(debuggerCore()->action(BreakOnWarning),
+        m_ui->checkBoxBreakOnWarning);
     m_group.insert(debuggerCore()->action(GdbWatchdogTimeout),
         m_ui->spinBoxGdbWatchdogTimeout);