Method testBitfields_

test/testvalueflow.cpp:9328–9334

#define testBitfields(...) testBitfields_(__FILE__, __LINE__, __VA_ARGS__)
    void testBitfields_(const char *file, int line, const std::string &structBody, std::size_t expectedSize) {
        const Settings settingsUnix64 = settingsBuilder().platform(Platform::Type::Unix64).build();
        const std::string code = "struct S { " + structBody + " }; const std::size_t size = sizeof(S);";
        const auto values = tokenValues(code.c_str(), "( S", &settingsUnix64);
        ASSERT_LOC(!values.empty(), file, line);
        ASSERT_EQUALS_LOC(expectedSize, values.back().intvalue, file, line);
    }

    void bitfields() {