Move repositories to 'repos/' subdirectory

This patch changes the top-level directory layout as a preparatory
step for improving the tools for managing 3rd-party source codes.
The rationale is described in the issue referenced below.

Issue #1082

repos/base-linux/src/test/lx_hybrid_exception/main.cc

@@ -0,0 +1,37 @@
+/*
+ * \brief  Test if the exception mechanism works in hybrid applications
+ * \author Christian Prochaska
+ * \date   2011-11-22
+ */
+
+/*
+ * Copyright (C) 2011-2013 Genode Labs GmbH
+ *
+ * This file is part of the Genode OS framework, which is distributed
+ * under the terms of the GNU General Public License version 2.
+ */
+
+#include <base/printf.h>
+
+using namespace Genode;
+
+class Test_exception { };
+
+/**
+ * Main program
+ */
+int main(int, char **)
+{
+	printf("--- lx_hybrid exception test ---\n");
+
+	try {
+		printf("Throwing Test_exception\n");
+		throw Test_exception();
+	} catch(Test_exception) {
+		printf("Caught Test_exception\n");
+	}
+
+	printf("--- returning from main ---\n");
+
+	return 0;
+}

repos/base-linux/src/test/lx_hybrid_exception/target.mk

@@ -0,0 +1,3 @@
+TARGET = test-lx_hybrid_exception
+SRC_CC = main.cc
+LIBS   = lx_hybrid