Aaron Hill c2946402ff Properly re-use def path hash in incremental mode ... Fixes #79661 In incremental compilation mode, we update a `DefPathHash -> DefId` mapping every time we create a `DepNode` for a foreign `DefId`. This mapping is written out to the on-disk incremental cache, and is read by the next compilation session to allow us to lazily decode `DefId`s. When we decode a `DepNode` from the current incremental cache, we need to ensure that any previously-recorded `DefPathHash -> DefId` mapping gets recorded in the new mapping that we write out. However, PR #74967 didn't do this in all cases, leading to us being unable to decode a `DefPathHash` in certain circumstances. This PR refactors some of the code around `DepNode` deserialization to prevent this kind of mistake from happening again.		2020-12-04 22:16:40 -05:00
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src	Properly re-use def path hash in incremental mode	2020-12-04 22:16:40 -05:00
Cargo.toml