The parameter list is initialized with a size and then the append command is used to add the paramaters. That will double the size of the list and let some empty spaces at the beginning of it.
Created attachment 171722 [details] Patch V1
Comment on attachment 171722 [details] Patch V1 Thank you!
Comment on attachment 171722 [details] Patch V1 Clearing flags on attachment: 171722 Committed r133099: <http://trac.webkit.org/changeset/133099>
All reviewed patches have been landed. Closing bug.