[beta] promote 1.73.0 to beta

* Bump version placeholder
* Bump CI channel to beta

r? `@Mark-Simulacrum`

(cherry picked from commit 31032ec)

[beta] backport and stage0 bump

- Bump to released stable compiler
- Add projection obligations when comparing impl too #115039

r? cuviper

[beta-1.73] Update cargo

1 commits in 80eca0e58fb2ff52c1e94fc191b55b37ed73e0e4..9c4383fb55986096b414d98125421ab87b5fd642
2023-08-19 00:52:06 +0000 to 2023-08-26 16:07:09 +0000
- [beta-1.73.0] add missing `windows-sys` features back (rust-lang/cargo#12564)

r? ghost

(cherry picked from commit 0383131)

This reverts commit 9de1a47.

(cherry picked from commit 823bacb)

(cherry picked from commit 84e305d)

(cherry picked from commit b3bbc22)

(cherry picked from commit f49494e)

(cherry picked from commit 930b2e7)

(cherry picked from commit 5529e2f)

Fixes #115064

(cherry picked from commit 3df9b4d)

[beta] backports

- Contents of reachable statics is reachable #115114
- Revert "Suggest using `Arc` on `!Send`/`!Sync` types" #115311
- Stop emitting non-power-of-two vectors in (non-portable-SIMD) codegen #115236
- Do not forget to pass DWARF fragment information to LLVM. #115139
- rustdoc: use unicode-aware checks for redundant explicit link fastpath #115070

r? cuviper

… when stabilized

…ct lifetimes

[beta] backport

This PR backports:
- #115559: implied bounds: do not ICE on unconstrained region vars
- #115446: fix version for abi_thiscall to 1.73.0, which was forgotten to change when stabilized and (later) moved to beta
- #115276: rustdoc: correctly deal with self ty params when eliding default object lifetimes

r? `@Mark-Simulacrum`

…generic, if `T` requires `Drop`

[beta] backport

This PR backports:

- #115785: Only suggest turbofish in patterns if we may recover
- #115527: Don't require `Drop` for `[PhantomData<T>; N]` where `N` and `T` are generic, if `T` requires `Drop`
- #115389: fix(resolve): update def if binding is warning ambiguity
- #115215: Remove assert that checks type equality

r? `@Mark-Simulacrum`

(cherry picked from commit 42a7080)

(cherry picked from commit 9b00e5f)

(cherry picked from commit ac76882)

(cherry picked from commit 8ad2379)

(cherry picked from commit 0277184)

This rebases our LLVM fork to 17.0.0.

Fixes #115681.

(cherry picked from commit 531830c)

[beta] backports

-  Fix a pthread_t handle leak #114696
-  MCP661: Move wasm32-wasi-preview1-threads target to Tier 2 #115345
-  Don't modify libstd to dump rustc ICEs #115627
-  Paper over an accidental regression #115844
-  Update to LLVM 17.0.0 #115959

r? cuviper

Otherwise clippy tries to use the query in ways that incremental caching will inevitably cause problems with.

…nostics_strikes_again, r=oli-obk

Expose try_destructure_mir_constant_for_diagnostics directly to clippy

Otherwise clippy tries to use the query in ways that incremental caching will inevitably cause problems with.

Hopefully gets rid of rust-lang/rust#83085 for good

…g opaque types

(cherry picked from commit 17b313f)

(cherry picked from commit b325e9c)

[beta] backports

- Only prevent field projections into opaque types, not types containing opaque types #116156
- Update LLVM submodule #116227

r? cuviper

[stable] 1.73.0 release

Still needs a clippy backport (rust-lang/rust-clippy#11596).

r? `@Mark-Simulacrum`

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