Description:
------------
PHP Fatal error:  Cannot use app\model\ServiceA as ServiceA because the name is already in use in /app/service/ServiceB.php on line 11


Under php5

In a directory, when use a class, if the directory has a same class name（not include namespace pre） and has been included before, will trigger a error.

PHP7 is ok!

code sample: https://github.com/liuyibao/php5-namespace-bug-report

Test script:
---------------
Under php5

In a directory, when use a class, if the directory has a same class name（not include namespace pre） and has been included before, will trigger a error.

PHP7 is ok!

code sample: https://github.com/liuyibao/php5-namespace-bug-report