debugger: make startGdb response handling asyncronous

This allows adapters to take all responses from the startup commands
into account.

Change-Id: I295cb211a4b69cfb8c59b34030aaee8120ffe98e
Reviewed-by: hjk <qthjk@ovi.com>

src/plugins/debugger/gdb/codagdbadapter.cpp

@@ -386,13 +386,19 @@ void CodaGdbAdapter::startGdb()
 {
     QStringList gdbArgs;
     gdbArgs.append(_("--nx")); // Do not read .gdbinit file
-    if (!m_engine->startGdb(gdbArgs)) {
-        cleanup();
-        return;
-    }
+    m_engine->startGdb(gdbArgs);
+}
+
+void CodaGdbAdapter::handleGdbStartDone()
+{
     m_engine->handleAdapterStarted();
 }
 
+void CodaGdbAdapter::handleGdbStartFailed()
+{
+    cleanup();
+}
+
 void CodaGdbAdapter::codaDeviceError(const QString  &errorString)
 {
     logMessage(errorString);