sync

diff --cc src/vapi/javascriptcore.vapi
index aacca04,9b57c03..3cfb399
--- 1/src/vapi/javascriptcore.vapi
--- 2/src/vapi/javascriptcore.vapi
+++ b/src/vapi/javascriptcore.vapi
@@@ -277,7 -277,7 +277,8 @@@ namespace JSCore 
  
    [Compact]
    /* FIXME: free_function causes a warning */
 +  [CCode (cname = "void", free_function = "(void)0")]
+   [CCode (cname = "JSValueRef", free_function = "")]
    public class Value {
      [CCode (cname = "JSValueMakeUndefined")]
      public Value.undefined (Context ctx);