Missing XCache constants ?

I'm working on code that uses the xcache extension.

When i attempt to use either of the Xcache constants, the IDE tells me that they are undefined?

Am i missing something?

Looking at the xcache stub used for autocomplete- i do not see them defined;

current workaround is to manually create another autocomplete file for my project that includes these constants:

const XC_TYPE_PHP = 0;
const XC_TYPE_VAR = 1;

But i'd hate to have to do this for every project. Has anyone else seen this, is there a recommended way to modify the included stubs- or is there a way to define things like this for all projects without having to do this additional configuration each time?