generate unique default indices for each loops
generate unique default indices for each loops

jadejs/jade-lexer,pugjs/jade-lexer,matthewmueller/jade-lexer,kristianmandrup/jade-lexer,pugjs/pug-lexer,xdissent/jade-lexer,pugjs/pug-lexer,matthewmueller/jade-lexer,tjefferson08/jade-lexer,xdissent/jade-lexer,tjefferson08/jade-lexer,kristianmandrup/jade-lexer