Syntax highlight for multiple mixins/formatters.

[tempit]

.myClass { -st-mixin: paramfulMixin('54','200'), paramfulMixin('54','200') }

2nd mixin param list, strings are not colored as strings. Scope inspector shows they are not getting string.quoted.single.css and meta.property-value.css scopes. Check if CSS hardcodes function names, find out how to add our own.