Debugger: Do configuration error checking early on.

Add a configuration checking method to the Debugger manager,
depending on toolchain, wire it to the engines.
Check that in the debugger run controls.

Add a convenience method to ICore that shows a warning
message with a "Settings" button, pointing the user
to a configuration error on a settings page.

Remove leftovers of the dumper parser.
Acked-by: con <qtc-committer@nokia.com>

src/plugins/coreplugin/coreimpl.cpp

@@ -69,6 +69,17 @@ bool CoreImpl::showOptionsDialog(const QString &group, const QString &page, QWid
     return m_mainwindow->showOptionsDialog(group, page, parent);
 }
 
+bool CoreImpl::showWarningWithOptions(const QString &title, const QString &text,
+                                      const QString &details,
+                                      const QString &settingsCategory,
+                                      const QString &settingsId,
+                                      QWidget *parent)
+{
+    return m_mainwindow->showWarningWithOptions(title, text,
+                                                details, settingsCategory,
+                                                settingsId, parent);
+}
+
 ActionManager *CoreImpl::actionManager() const
 {
     return m_mainwindow->actionManager();