Roman Lebedev 11a3f040c7 [Utils] Make -assume-builder/-assume-simplify actually work on Old-PM ...

clang w/ old-pm currently would simply crash
when -mllvm  -enable-knowledge-retention=true is specified.

Clearly, these two passes had no Old-PM test coverage,
which would have shown the problem - not requiring AssumptionCacheTracker,
but then trying to always get it.

Also, why try to get domtree only if it's cached,
but at the same time marking it as required?

2020-07-04 21:06:36 +03:00

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