Nicholas Nethercote 28687bca75 Optimize CMap.prototype.forEach().
This change avoids the element stringification caused by for..in for the
vast majority of CMaps.

When loading the PDF from issue #4580, this change reduces peak RSS from ~650
to ~600 MiB, and improves overall speed by ~20%, from 902 ms to 713 ms.  Other
CMap-heavy documents will also see improvements.
2014-07-30 06:28:47 -07:00
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2014-07-30 06:28:47 -07:00
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2014-07-25 21:53:09 +02:00