void EmitPatterns(std::vector<std::pair<const PatternToMatch*,
std::vector<std::pair<unsigned, std::string> > > > &Patterns,
unsigned Indent, std::ostream &OS);
void EmitPatterns(std::vector<std::pair<const PatternToMatch*,
std::vector<std::pair<unsigned, std::string> > > > &Patterns,
unsigned Indent, std::ostream &OS);