RefPtr<ProgramSyntax::FunctionDeclaration> parse_function_declaration();
RefPtr<ProgramSyntax::InterfaceBlock> parse_interface_block();
RefPtr<ProgramSyntax::Conditional> parse_conditional();
RefPtr<ProgramSyntax::FunctionDeclaration> parse_function_declaration();
RefPtr<ProgramSyntax::InterfaceBlock> parse_interface_block();
RefPtr<ProgramSyntax::Conditional> parse_conditional();