fix compatability for Xcode 11

SDWebImage/UIImageView+WebCache.m

@@ -164,7 +164,7 @@ static char TAG_ACTIVITY_SHOW;
 }
 
 - (void)setIndicatorStyle:(UIActivityIndicatorViewStyle)style{
-    objc_setAssociatedObject(self, &TAG_ACTIVITY_STYLE, [NSNumber numberWithInt:style], OBJC_ASSOCIATION_RETAIN);
+    objc_setAssociatedObject(self, &TAG_ACTIVITY_STYLE, [NSNumber numberWithInteger:style], OBJC_ASSOCIATION_RETAIN);
 }
 
 - (int)getIndicatorStyle{