Xcode 6.4: NSTextViewDelegate method signature can cause crashes in Swift due to implicitly unwrapped optionals

Originator:aralbalkan
Number:rdar://22150693 Date Originated:05-Aug-2015 01:36 PM
Status:Open Resolved:
Product:Developer Tools Product Version:Xcode 6.4 (6E35b)
Classification:Enhancement Reproducible:Always
 
Please see the following post for a detailed description, including an isolated project for duplicating it:

https://forum.ind.ie/t/the-strange-tale-of-the-crashing-implicitly-unwrapped-optionals-in-an-nstextviewdelegate-method/706

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