Ravi Kandhadai f2ec557619 [OSLogOptimization] Improve the replaceAndFixLifetimes function ...

of the OSLogOptimization pass. This commit contain two changes:
 - It handles non-OSSA better (but it is meant to be phased out) so
   that array and closure folding can be supported
 - It fixes a bug in the OSSA folding by making sure that when an
   owned value replaces a guaranteed value, the owned value is
   borrowed and the borrow is used in place of the guaranteed value.

2019-11-12 18:14:48 -08:00

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