Swap RecordExprField optional part

Veykril · Veykril · commit 075778d56da3 · 2021-01-18T19:56:51.000+01:00
diff --git a/rust.ungram b/rust.ungram
@@ -418,7 +418,7 @@ RecordExprFieldList =
   '}'
 
 RecordExprField =
-  Attr* NameRef (':' Expr)?
+  Attr* (NameRef ':')? Expr
 
 CallExpr =
   Attr* Expr ArgList
