debugger: add test code for multi-process debugging

Change-Id: I10a419a5dc538d4d42bab7f3f2070430db388eed
Reviewed-by: hjk <qthjk@ovi.com>

tests/manual/debugger/multi/main.cpp

@@ -0,0 +1,16 @@
+
+#include <QApplication>
+#include <QProcess>
+#include <QStringList>
+
+int main(int argc, char *argv[])
+{
+    QApplication app(argc, argv);
+    QStringList args = app.arguments();
+
+    int n = args.size() == 1 ? 3 : args.at(0).toInt() - 1;
+    if (n >= 0) {
+        QProcess proc;
+        proc.startDetached(args.at(0), QStringList(QString::number(n)));
+    }
+}

tests/manual/debugger/multi/multi.pro

@@ -0,0 +1,9 @@
+TEMPLATE = app
+TARGET = multi
+DEPENDPATH += .
+INCLUDEPATH += .
+
+SOURCES += main.cpp
+CONFIG += qt warn_on debug
+OBJECTS_DIR = .obj/debug-shared
+MOC_DIR = .moc/debug-shared