MFH: r484106

Mark BROKEN: fails to build

In file included from /wrkdirs/usr/ports/lang/swift/work/swift-3.1.1/swift/lib/SILGen/SILGenProfiling.cpp:13:
In file included from /wrkdirs/usr/ports/lang/swift/work/swift-3.1.1/swift/lib/SILGen/SILGenProfiling.h:16:
In file included from /wrkdirs/usr/ports/lang/swift/work/swift-3.1.1/llvm/include/llvm/ADT/DenseMap.h:17:
In file included from /wrkdirs/usr/ports/lang/swift/work/swift-3.1.1/llvm/include/llvm/ADT/DenseMapInfo.h:17:
In file included from /wrkdirs/usr/ports/lang/swift/work/swift-3.1.1/llvm/include/llvm/ADT/ArrayRef.h:13:
In file included from /wrkdirs/usr/ports/lang/swift/work/swift-3.1.1/llvm/include/llvm/ADT/Hashing.h:48:
In file included from /wrkdirs/usr/ports/lang/swift/work/swift-3.1.1/build/Ninja-ReleaseAssert+stdlib-Release/llvm-freebsd-x86_64/include/llvm/Support/DataTypes.h:33:
In file included from /usr/include/c++/v1/cmath:305:
In file included from /usr/include/c++/v1/math.h:309:
/usr/include/c++/v1/type_traits:1366:38: error: incomplete type 'swift::Expr' used in type trait expression

: public integral_constant<bool, __is_abstract(_Tp)> {};
                                 ^

Reported by: pkg-fallout