Mir predecessors cache invalidate on terminators#64841

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Nashenas88 wants to merge 4 commits intorust-lang:masterfrom

Nashenas88:mir_predecessors_cache_invalidate_on_terminators

Commits on Sep 24, 2019

Remove interior mutability in mir predecessors cache
Nashenas88
committed

Commits on Sep 25, 2019

Commits on Sep 27, 2019

Stop invalidating predecessors cache when accessing unique basic block, invalidate cache when accessing unique terminator
Nashenas88
committed