As you can see, GitHub correctly highlights both lines of parameters, even if there is a line break splitting them up. However better coffeescript does not, it removes all syntax highlighting all together if there is a line break:
Not only that, in the case that a function or constructor has parameters over 2 or more lines, it gets removed from the symbol navigation as well (ctrl+r)
For example:
As you can see, GitHub correctly highlights both lines of parameters, even if there is a line break splitting them up. However better coffeescript does not, it removes all syntax highlighting all together if there is a line break: