swift234

[API notes] CTFontManagerError is not a valid Error at this time. (#4104)

CoreText is below Foundation in the framework stack, so its error enum
uses a CFStringRef constant as its domain instead of an NSString. The
importer doesn't know how to handle that yet, so for now, just don't
import CTFontManagerError as a first-class error type.

rdar://problem/27722004