Some attributes are parameterized, such as `@objc(name)`. Previously
these reported `attributes` violations because their contents weren't
included in the configuration, which would just have `@objc`.
The following was triggering:
```swift
func printBoolOrTrue(_ expression: @autoclosure () throws -> Bool?) rethrows {
try print(expression() ?? true)
}
```
Fix by adding the `rethrows` attribute kind to the rule's blacklist.
* Add Example wrapper in order to display test failures inline when running in Xcode.
* Stop using Swift 5.1-only features so we can compile on Xcode 10.2.
* Wrap strings in Example.
* Add Changelog entry.
* Wrap all examples in Example struct.
* Better and more complete capturing of line numbers.
* Fix broken test.
* Better test traceability.
* Address or disable linting warnings.
* Add documentation comments.
* Disable linter for a few cases.
* Limit mutability and add copy-and-mutate utility functions.
* Limit scope of mutability.
Danny Mösch