Enable CF implicit bridges to types so that Unmanaged is avoided

Author: phausler

CoreFoundation/Base.subproj/ForSwiftFoundationOnly.h

@@ -19,6 +19,7 @@
 #include <fts.h>
 
 CF_ASSUME_NONNULL_BEGIN
+CF_IMPLICIT_BRIDGING_ENABLED
 
 struct __CFSwiftObject {
     uintptr_t isa;
@@ -271,6 +272,7 @@ extern void _cf_uuid_unparse(const _cf_uuid_t uu, _cf_uuid_string_t out);
 extern void _cf_uuid_unparse_lower(const _cf_uuid_t uu, _cf_uuid_string_t out);
 extern void _cf_uuid_unparse_upper(const _cf_uuid_t uu, _cf_uuid_string_t out);
 
+CF_IMPLICIT_BRIDGING_DISABLED
 CF_ASSUME_NONNULL_END
 
 #endif /* __COREFOUNDATION_FORSWIFTFOUNDATIONONLY__ */

Foundation/NSProcessInfo.swift

@@ -46,7 +46,7 @@ public class NSProcessInfo : NSObject {
 
 
     internal static var _environment: [String : String] = {
-        let dict = __CFGetEnvironment().takeUnretainedValue()._nsObject
+        let dict = __CFGetEnvironment()._nsObject
         var env = [String : String]()
         dict.enumerateKeysAndObjectsUsingBlock { key, value, stop in
             env[(key as! NSString)._swiftObject] = (value as! NSString)._swiftObject
@@ -96,7 +96,7 @@ public class NSProcessInfo : NSObject {
 
     public var operatingSystemVersionString: String {
         get {
-            return CFCopySystemVersionString().takeRetainedValue()._swiftObject
+            return CFCopySystemVersionString()._swiftObject
         }
     }