Type metadata accessor / failed to demangle superclass from mangled name: https://forums.swift.org/t/xcode-11-2-runtime-error-type-metadata-accessor-failed-to-d

Type metadata accessor / failed to demangle superclass from mangled name: https://forums.swift.org/t/xcode-11-2-runtime-error-type-metadata-accessor-failed-to-demangle-superclass-from-mangled-name/30604 https://forums.swift.org/t/xcode-11-2-runtime-error-type-met... Property Wrapper initializers with #file/#function: https://forums.swift.org/t/compiler-segmentation-fault-when-using-property-wrappers-to-log-changes-to-a-value/30732 https://forums.swift.org/t/compiler-segmentation-fault-when-... With the disconnect between the Swift team and Apple after Swift going open-source, it's not clear if these goblins are spawned inside of Apple's APIs or the Swift runtime.