message: Add PUGIXML_WCHAR_MODE configuration to MinGW tests
  We are currently only testing UTF8 mode which means we don't have code
  coverage for some UTF->UTF decoding paths.
diff: @@ -11,6 +11,7 @@ test_script:
  - ps: if ($env:APPVEYOR_BUILD_WORKER_IMAGE -eq "Visual Studio 2015") { .\tests\autotest-appveyor.ps1 9 10 11 12 14 }
  - ps: if ($env:APPVEYOR_BUILD_WORKER_IMAGE -eq "Visual Studio 2017") { .\tests\autotest-appveyor.ps1 15 }
  - ps: if ($env:APPVEYOR_BUILD_WORKER_IMAGE -eq "Visual Studio 2015") { & C:\cygwin\bin\bash.exe -c "PATH=/usr/bin:/usr/local/bin:$PATH; make config=coverage test && bash <(curl -s https://codecov.io/bash) -f pugixml.cpp.gcov" }
  + - ps: if ($env:APPVEYOR_BUILD_WORKER_IMAGE -eq "Visual Studio 2015") { & C:\cygwin\bin\bash.exe -c "PATH=/usr/bin:/usr/local/bin:$PATH; make config=coverage defines=PUGIXML_WCHAR_MODE test && bash <(curl -s https://codecov.io/bash) -f pugixml.cpp.gcov" }
  artifacts:
  - path: .\scripts\*.nupkg
  