Function extractInstanceName

CvPlot/ext/catch2/inc/catch.hpp:10470–10477

Extracts the actual name part of an enum instance In other words, it returns the Blue part of Bikeshed::Colour::Blue

            // Extracts the actual name part of an enum instance
            // In other words, it returns the Blue part of Bikeshed::Colour::Blue
            StringRef extractInstanceName(StringRef enumInstance) {
                // Find last occurence of ":"
                size_t name_start = enumInstance.size();
                while (name_start > 0 && enumInstance[name_start - 1] != ':') {
                    --name_start;
                }
                return enumInstance.substr(name_start, enumInstance.size() - name_start);
            }
        }

        std::vector<StringRef> parseEnums( StringRef enums ) {