[stdlib] Revert noop change

Author: lorentey

stdlib/public/core/StringBridge.swift

@@ -614,12 +614,10 @@ extension String {
       // TODO: We'd rather emit a valid ObjC object statically than create a
       // shared string class instance.
       let gutsCountAndFlags = _guts._object._countAndFlags
-      let countAndFlags = _StringObject.CountAndFlags(
-        sharedCount: _guts.count,
-        isASCII: gutsCountAndFlags.isASCII)
       return __SharedStringStorage(
         immortal: _guts._object.fastUTF8.baseAddress!,
-        countAndFlags: countAndFlags)
+        countAndFlags: _StringObject.CountAndFlags(
+          sharedCount: _guts.count, isASCII: gutsCountAndFlags.isASCII))
     }
 
     _internalInvariant(_guts._object.hasObjCBridgeableObject,