Debugger: Use Core::AsynchronousMessageBox

Nested event loops can lead to crashes, so it is better to use a dialog
which does not have have its own event loop.

Change-Id: Icd2390c9026bc1ef88e72a570df5813fe5cbdaa2
Reviewed-by: hjk <hjk121@nokiamail.com>

src/plugins/debugger/gdb/remotegdbserveradapter.cpp

@@ -38,12 +38,13 @@
 #include <debugger/debuggerstartparameters.h>
 #include <debugger/debuggerstringutils.h>
 
+#include <coreplugin/messagebox.h>
+
 #include <utils/hostosinfo.h>
 #include <utils/qtcassert.h>
 #include <utils/qtcprocess.h>
 
 #include <QFileInfo>
-#include <QMessageBox>
 
 namespace Debugger {
 namespace Internal {
@@ -130,7 +131,7 @@ void GdbRemoteServerEngine::uploadProcError(QProcess::ProcessError error)
     }
 
     showMessage(msg, StatusBar);
-    showMessageBox(QMessageBox::Critical, tr("Error"), msg);
+    Core::AsynchronousMessageBox::critical(tr("Error"), msg);
 }
 
 void GdbRemoteServerEngine::readUploadStandardOutput()