The rule changes are as follows:
* All functions (introduced with the 'func' keyword) have argument
labels for arguments beyond the first, by default. Methods are no
longer special in this regard.
* The presence of a default argument no longer implies an argument
label.
The actual changes to the parser and printer are fairly simple; the
rest of the noise is updating the standard library, overlays, tests,
etc.
With the standard library, this change is intended to be API neutral:
I've added/removed #'s and _'s as appropriate to keep the user
interface the same. If we want to separately consider using argument
labels for more free functions now that the defaults in the language
have shifted, we can tackle that separately.
Fixes rdar://problem/17218256.
Swift SVN r27704
We weren't diagnosing initializer delegation/chaining, subscripts, or
(the one that got me concerned) members accessed through AnyObject.
Swift SVN r18271
Use this for -class and +class, to make them less ad hoc. More to follow.
As part of this, actually mark imported unavailable declarations in a
protocol as "optional", because nobody should have to implement an
unavailable declaration.
Swift SVN r18262
This allows "obj.description!" to work on iOS when 'obj' is an AnyObject,
even though 'description' is an implicit property created by the importer.
Swift SVN r18149
