* bugzilla 13342: mixin error message now interpreted
  * when running/unittesting from within visuald, exception/callstack locations can be jumped to
  * bugzilla 13213: there are now both "goto definition" and "goto declaration", where the former
    will try to find the forward declared symbols through the object browser (including C/C++)
  * object browser/symbol search: now filters out __unittest and __invariant symbols