…gisa

 Remove duplicated temporaries creating during box derefs elaboration

Temporaries created with `MirPatch::new_temp` will be declared after
patch application. Remove manually created duplicate declarations.

Removing duplicates exposes another issue. Visitor elaborates
terminator twice and attempts to access new, but not yet available,
local declarations. Remove duplicated call to `visit_terminator`.

Extracted from rust-lang#99946.

…gisa

 Remove duplicated temporaries creating during box derefs elaboration

Temporaries created with `MirPatch::new_temp` will be declared after
patch application. Remove manually created duplicate declarations.

Removing duplicates exposes another issue. Visitor elaborates
terminator twice and attempts to access new, but not yet available,
local declarations. Remove duplicated call to `visit_terminator`.

Extracted from rust-lang#99946.

…gisa

 Remove duplicated temporaries creating during box derefs elaboration

Temporaries created with `MirPatch::new_temp` will be declared after
patch application. Remove manually created duplicate declarations.

Removing duplicates exposes another issue. Visitor elaborates
terminator twice and attempts to access new, but not yet available,
local declarations. Remove duplicated call to `visit_terminator`.

Extracted from rust-lang#99946.

Rollup of 11 pull requests

Successful merges:

 - rust-lang#92744 (Check if enum from foreign crate has any non exhaustive variants when attempting a cast)
 - rust-lang#99110 (Determine match_has_guard from candidates instead of looking up thir table again)
 - rust-lang#100184 (Stabilize ptr_const_cast)
 - rust-lang#100192 ( Remove duplicated temporaries creating during box derefs elaboration)
 - rust-lang#100232 (Do not consider method call receiver as an argument in AST.)
 - rust-lang#100287 (linux: Use `pthread_setname_np` instead of `prctl`)
 - rust-lang#100351 (Use `&mut Diagnostic` instead of `&mut DiagnosticBuilder` unless needed)
 - rust-lang#100370 (Remove more Clean trait implementations)
 - rust-lang#100391 (Improve size assertions)
 - rust-lang#100398 (Improve `-Zhir-stats`)
 - rust-lang#100403 (Improve error messages when running rustdoc GUI tests)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup

Rollup of 7 pull requests

Successful merges:

 - rust-lang#92744 (Check if enum from foreign crate has any non exhaustive variants when attempting a cast)
 - rust-lang#99337 (rustdoc: simplify highlight.rs)
 - rust-lang#100007 (Never inline Windows dtor access)
 - rust-lang#100030 (cleanup code w/ pointers in std a little)
 - rust-lang#100192 ( Remove duplicated temporaries creating during box derefs elaboration)
 - rust-lang#100247 (Generalize trait object generic param check to aliases.)
 - rust-lang#100374 (Improve crate selection on rustdoc search results page)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup