support for /deep/ and ::shadow

With custom elements landed in Chrome beta and shadow dom in Chrome stable, the need for ::shadow and /deep/ syntax is becoming real. I don’t like the /deep/ syntax, it’s ugly as sin, but also rather important for overriding styling inside a shadow dom element, and right now less crashes when it encounters it, so: feature request for ::shadow and /deep/ support =)

[seven-phases-max]

::shadow is already supported (as well as any other ::identifier and :identifier(identifier) stuff). /deep/ support may be too early since it’s actually a combinator and most likely they will change it to something like >> or >>> (for example earlier ^ and ^^ support has been added and now where are these draft combinators? Gone 😃. And meanwhile it’s always possible to generate whatever selector characters by escaping:

@deep: ~'/deep/';
x-foo @{deep} span {
    // ...
}

I guess there’s nothing wrong with supporting a draft CSS feature in Less but not when the feature changes too often (yet).

[seven-phases-max]

Yes, ^^ is the old syntax and we don’t need to support it anymore (and ^ too if I’m not mistaken).