v0.8.4

Enzyme v0.8.4

Diff since v0.8.3

Merged pull requests:

• Support LLVM 13 (#173) (@vchuravy)
• Use custom error handler (#193) (@wsmoses)
• Allow markType to work in primal (#196) (@vchuravy)
• Ensure markType can just take array-like (#197) (@vchuravy)
• Record pointer of view instead of parent (#198) (@vchuravy)
• Add split mode jl_invoke (#200) (@wsmoses)
• Add in_threaded_region (#201) (@wsmoses)
• Faster build_local (#204) (@vchuravy)
• Faster differential threadid/nthreads (#206) (@wsmoses)
• add CVP (#207) (@vchuravy)
• [0.8] Warn on non definite number of fields instead of failing (#209) (@vchuravy)