Cppcheck buffered file only #3983
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Cppcheck recently added --file-filter so that cppcheck only checks the filtered files, even when using --project option, which checks all files in the project, by default. The --ccpcheck-build-dir option didn't help enough (at all?).
Also fixed and assumed typo: foo.c, instead of foo.cpp
Attempt to fix the windows platform test execution.
Cppcheck isn't designed to check header files, stand-alone. Daniel Marjamäki suggested using --suppress options to avoid FPs.
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Cppcheck can take a long time to check a large project and has --file-filter option to check only the files in the project that match the filter. The PR adds logic to check only the file in the buffer.
Cppcheck isn't designed to work on header files without being included in the c/cc/cpp file. This PR also addresses that issue by skipping
--projectoption and adding--suppressfor discovered false positive,unusedStructMember.