Close issue #299: `leibnizO` finds convoluted proof for definitions

Closes #299

See merge request iris/iris!392

Testcase for iris/stdpp!123.

See merge request iris/iris!391

More consistent names for `fill` lemmas of `LanguageCtx`.

See merge request iris/iris!389

Use `_inv` for the reverse direction.

prove later commuting around equality one way

See merge request iris/iris!388

Avoid using Hint Resolve with a term

See merge request iris/iris!390

This feature is now deprecated in Coq master (see
https://github.com/coq/coq/pull/7791).

Instead of passing a partially-applied lemma directly to Hint Resolve,
first create a definition and then make that reference a hint.

no longer reftest old Coq 8.9

See merge request iris/iris!386

slightly expand notation docs

See merge request iris/iris!385

Fix discrepancies in bi notations.

See merge request iris/iris!384

drop support for Coq 8.8

See merge request iris/iris!378

Add array_copy to heap_lang

Closes #293

See merge request iris/iris!379

Tej Chajed authored 5 years ago and Ralf Jung committed 5 years ago

Add array_copy_to (copy in-place to destination array) and array_clone
(copy to a freshly allocated array). The heap_lang spec and proof for
array_copy_to are inspired by
https://gitlab.mpi-sws.org/iris/lambda-rust/blob/3b4ae69fa3be1344245245bf05e5e80e790e064d/theories/lang/lib/memcpy.v.

Fixes #293.

Derive WP lifting and array rules from TWP rules

See merge request iris/iris!383

- Export `total_weakestpre` in `lifting` already, like we do for `weakestpre`.
- Do not export modules that are already exported by exported modules.

Thanks to @Blaisorblade, based on
https://gitlab.mpi-sws.org/Blaisorblade/iris-coq/commit/0739608d32272ca5679bf504a569b3ddd50c7b29,
but applied to similar notations too.