core: added cv::error with CV_NORETURN attr
ts/perf: int -> enum WarmUpType
Merge pull request #1910 from alalek:ts_perf_warmuptype
Merge pull request #1891 from alalek:cv_error_noreturn
T-API cv::log, cv::exp, cv::magnitude, cv::phase
small fix
Merge pull request #1912 from KonstantinMatskevich:ocl_tapi_math