Topaz

New features for dextool mutate

• Speedup execution of tests by only running those that are affected by the
  mutant when running the slow source code modification engine. This is done
  by saving the checksum of all test_cmd after build_cmd is executed and
  no mutant is inserted. When a mutant is later on inserted the resulting
  test_cmds are compared to the unmodified. Only those that are different
  are classified as affected and thus need to be executed. If no test_cmd
  is affected by the inserted mutant the mutation is classified as
  equivalent. Set test_cmd_checksum to true to activate the feature. It is
  by default turned off.
• Changed the default test order of mutants to bySize after a thorough
  testing phase. It means that the mutants are tested in random order but
  weighted by how much they affect the program (SUT). This mean that e.g.
  large sdl mutants will be prioritized above aor mutants.

Fixes for dextool mutate

• The captured output from the test cases wasn't possible to limit which could
  lead to a memory explosion and consequential crash of the tool because it
  ran out of memory. This has now been fixed by introducing a configuration
  option (max_test_cmd_output) and default limit of 10 Mbyte.
• Fix console spam when the plugin compile the software under test. The spam
  is replaced by a timestamp that is printed once every minute to indicate to
  a CI service that it is alive and to the user how long it has been
  compiling. If the compilation fail it will automatically re-start but this
  time print all output to the console for the user to understand what went
  wrong.
• Fix lockup when there are test cases with the same name.