Add missing CFSocket.c to compile step of CoreFoundation target.

Author: cwillmor

Foundation.xcodeproj/project.pbxproj

@@ -340,6 +340,7 @@
 		EADE0BCB1BD15E0000C49C64 /* NSXMLNode.swift in Sources */ = {isa = PBXBuildFile; fileRef = EADE0B8D1BD15DFF00C49C64 /* NSXMLNode.swift */; };
 		EADE0BCC1BD15E0000C49C64 /* NSXMLNodeOptions.swift in Sources */ = {isa = PBXBuildFile; fileRef = EADE0B8E1BD15DFF00C49C64 /* NSXMLNodeOptions.swift */; };
 		EADE0BCD1BD15E0000C49C64 /* NSXMLParser.swift in Sources */ = {isa = PBXBuildFile; fileRef = EADE0B8F1BD15DFF00C49C64 /* NSXMLParser.swift */; };
+		F2C623AF1CD80D9400E1A419 /* CFSocket.c in Sources */ = {isa = PBXBuildFile; fileRef = 5B5D88E01BBC9B0300234F36 /* CFSocket.c */; };
 		F9E0BB371CA70B8000F7FF3C /* TestNSURLCredential.swift in Sources */ = {isa = PBXBuildFile; fileRef = F9E0BB361CA70B8000F7FF3C /* TestNSURLCredential.swift */; };
 /* End PBXBuildFile section */
 
@@ -1894,6 +1895,7 @@
 				5B40F9EF1C124F47000E72E3 /* CFXMLInterface.c in Sources */,
 				5B7C8A961BEA7FF900C5B690 /* CFBundle_Binary.c in Sources */,
 				5B7C8AAC1BEA800D00C5B690 /* CFString.c in Sources */,
+				F2C623AF1CD80D9400E1A419 /* CFSocket.c in Sources */,
 				5B7C8A821BEA7FCE00C5B690 /* CFStorage.c in Sources */,
 				5B7C8AAF1BEA800D00C5B690 /* CFStringUtilities.c in Sources */,
 				5B7C8A891BEA7FDB00C5B690 /* CFNumberFormatter.c in Sources */,