THRIFT-256. python: Fix inheritance of services in the same IDL file

The old version of type_name did not fully qualify parent service names
when they were defined in the same IDL file, but it is necessary because
they end up in different Python files.


git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@741833 13f79535-47bb-0310-9956-ffa450edef68
3 files changed