Specifying a type to use for parameter-less "static" default methods in a trait

[SimonSapin]

<T> in this line is no longer valid in Rust master:
https://github.com/mozilla-servo/rust-core-foundation/blob/1f43d00330/base.rs#L57

Having a dummy parameter of type Option<Self> could work, but refactoring across repositories this will be a pain. (Not to mention how ugly it is.)

[SimonSapin]

The #18 pull request uses that work around for now.

Possibly related:

rust-lang/rust#6894
rust-lang/rust#8888

[zummenix]

Now this is possible to remove dummy parameter in type_id function:

fn type_id(dummy: Option<Self>) -> CFTypeID;

I was thinking about deprecation of this function and adding new one but I can't to come up with new name.

[SimonSapin]

I don’t think we’re making any API stability promises for this library. Feel free to just remove the dummy parameter. If you also want to patch Servo and related libraries to use this change, that’d be great!