
Minor parse time performance improvement (profiling was showing ~500ms
spent traversing the obj lit keys).  This changes the order from
O(keys^2) to O(keys).

R=nicksantos
DELTA=47  (29 added, 5 deleted, 13 changed)


Revision created by MOE tool push_codebase.
MOE_MIGRATION=216974


olegshnitko/closure-compiler,ajukraine/closure-compiler,olegshnitko/closure-compiler,ajukraine/closure-compiler