concatAppendOne should allocate using the indexing type of the array if it cannot merge
Created attachment 284715 [details] Patch
Created attachment 284716 [details] Patch
Comment on attachment 284716 [details] Patch r=me
rdar://problem/27530122
Comment on attachment 284716 [details] Patch Clearing flags on attachment: 284716 Committed r203798: <http://trac.webkit.org/changeset/203798>
All reviewed patches have been landed. Closing bug.