### Description
When building code generated by a Swift macro in a debug configuration, the compiler crashes. The crash log is as follows:
Crash log
```
Building for debugging...
@__swif…
Unable to compile the CocoaLumberjackSwift framework due to issues with the way the SwiftMacro creates the DDLogMessage:
![screen shot 2014-12-16 at 10 37 19 pm](https://cloud.githubusercontent.com/as…