fixed segmentation fault for zero length files

[AlexHaxe]

fixed codeclimate reporter on C++ target

[codecov-io]

Codecov Report

Merging #428 into dev will decrease coverage by <.01%.
The diff coverage is 0%.

@@            Coverage Diff             @@
##              dev     #428      +/-   ##
==========================================
- Coverage   91.46%   91.45%   -0.01%     
==========================================
  Files         130      130              
  Lines        9856     9857       +1     
  Branches      359      360       +1     
==========================================
  Hits         9015     9015              
  Misses        525      525              
- Partials      316      317       +1

Impacted Files	Coverage Δ
src/checkstyle/checks/Check.hx	84.39% <0%> (-0.5%)	⬇️

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