/usr/lib/coffee-script/ is in coffeescript 1.4.0-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/coffee-script/lib/
/usr/lib/coffee-script/lib/coffee-script/
/usr/lib/coffee-script/lib/coffee-script/browser.js
/usr/lib/coffee-script/lib/coffee-script/cake.js
/usr/lib/coffee-script/lib/coffee-script/coffee-script.js
/usr/lib/coffee-script/lib/coffee-script/command.js
/usr/lib/coffee-script/lib/coffee-script/grammar.js
/usr/lib/coffee-script/lib/coffee-script/helpers.js
/usr/lib/coffee-script/lib/coffee-script/index.js
/usr/lib/coffee-script/lib/coffee-script/lexer.js
/usr/lib/coffee-script/lib/coffee-script/nodes.js
/usr/lib/coffee-script/lib/coffee-script/optparse.js
/usr/lib/coffee-script/lib/coffee-script/parser.js
/usr/lib/coffee-script/lib/coffee-script/repl.js
/usr/lib/coffee-script/lib/coffee-script/rewriter.js
/usr/lib/coffee-script/lib/coffee-script/scope.js
/usr/lib/coffee-script/src/
/usr/lib/coffee-script/src/browser.coffee
/usr/lib/coffee-script/src/cake.coffee
/usr/lib/coffee-script/src/coffee-script.coffee
/usr/lib/coffee-script/src/command.coffee
/usr/lib/coffee-script/src/grammar.coffee
/usr/lib/coffee-script/src/helpers.coffee
/usr/lib/coffee-script/src/index.coffee
/usr/lib/coffee-script/src/lexer.coffee
/usr/lib/coffee-script/src/nodes.coffee
/usr/lib/coffee-script/src/optparse.coffee
/usr/lib/coffee-script/src/repl.coffee
/usr/lib/coffee-script/src/rewriter.coffee
/usr/lib/coffee-script/src/scope.coffee