pangloss/vim-javascript — pull request #64 by goatslacker (2013-02-19 19:20:22+00:00)
Title: Adds syntax for Identifiers in labeled statements

{ $: 'now this label has syntax highlighting' }

Using this RegExp `[a-zA-Z_$][0-9a-zA-Z_$\-]`
instead of just checking for `\w`.

Although it doesn't cover the full range of characters an Identifier
can be it does work for the 98%.