Add precedencegroup keyword

keith · keith · commit d9c641cfd332 · 2016-10-23T01:22:18.000+08:00
diff --git a/syntax/swift.vim b/syntax/swift.vim
@@ -143,6 +143,7 @@ syntax keyword swiftKeywords
       \ override
       \ postfix
       \ precedence
+      \ precedencegroup
       \ prefix
       \ private
       \ protocol
