Add a test case to test that lldb command "command source" works correctly.

llvm-svn: 109806
diff --git a/lldb/test/command_source/my.py b/lldb/test/command_source/my.py
new file mode 100644
index 0000000..86ce502
--- /dev/null
+++ b/lldb/test/command_source/my.py
@@ -0,0 +1,4 @@
+def date():
+    import datetime
+    today = datetime.date.today()
+    print today