Method add_file

src/mdebug.cpp:509–514

    }
private:
    void add_file(std::string&& filename) { 
        files_.emplace_back(MDebugFile{
            .filename = std::move(filename),
            .symbols = {}
        });
    }
    void add_symbol(size_t file_index, MDebugSymbol&& sym) {
        symbols_by_name_.emplace(sym.name, std::make_pair(file_index, files_[file_index].symbols.size()));
        files_[file_index].symbols.emplace_back(std::move(sym));