test(autocompletion): Add test for '{XXX}' notation in autocompletions (refs #5151)
fix(getResPhpFunc): Evaluate '{XXX}' notation in autocompletions (refs #5151)

The '{XXX}' notation permits resolution of global app parameter or
family names in autocompletions :
- '{FAM_NAME}': returns the id of the family named 'FAM_NAME'
- '{APP_PARAM_NAME}': returns the value of the global parameter
  'APP_PARAM_NAME'