Swift: LLVM internal error when trying to serialize Swift array with NSCoding

Originator:d2.lebedev
Number:rdar://17284746 Date Originated:12.06.2014
Status:Open Resolved:
Product:Xcode Product Version:6.0 (6A215l)
Classification:Serious issue Reproducible:Always
 
Summary:
NSCoder.encodeObject(:forKey) does not accept objects of Array type and fails at compile time with non-descriptive error

Steps to Reproduce:
1. Create swift class with property of Array type and conform it to NSCoding (see attachment)
2. Compile

Expected Results:
No compilation errors

Actual Results:
Bitcast requires both operands to be pointer or neither
  %199 = bitcast i32 %198 to %objc_object*, !dbg !223
LLVM ERROR: Broken function found, compilation aborted!
Command /Applications/Xcode6-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift failed with exit code 1

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