Changed dot-syntax usage a bit

[supermarin]

OK
object.name = @"Github";
object.name;

NOT OK
object.doSomething;
object.copy;
AClass.makeSomeStuff;
AClass.alloc.init;
[AClass.alloc initWithName:@"Octocat"];

[alanjrogers]

This appears to be less clear than our existing phrasing.

[supermarin]

😸

[jspahrsummers]

I agree with @alanjrogers. The point of our existing phrasing is that dot syntax is appropriate for any method which:

1. Is repeatable with the same result
2. Does not have side effects visible to the caller

This means we will happily use dot syntax for things other than @property declarations (e.g., NSFileManager.defaultManager), because it's about the semantics of the implementation, not the declaration in the header. And our guideline still rules out doSomething, copy, alloc, etc. methods.