Auto merge of #54241 - vi:suggest_with_applicability, r=estebank

Remove usages of span_suggestion without Applicability

Use `Applicability::Unspecified` for all of them instead.

Shall deprecations for the non-`_with_applicability` functions be added?

Shall clippy be addressed somehow?

r? @estebank

diff --cc src/librustc/infer/error_reporting/nice_region_error/named_anon_conflict.rs
Simple merge

diff --cc src/librustc/infer/error_reporting/nice_region_error/static_impl_trait.rs
Simple merge

diff --cc src/librustc/session/mod.rs
Simple merge

diff --cc src/librustc_borrowck/borrowck/mod.rs
Simple merge

diff --cc src/librustc_errors/diagnostic_builder.rs
Simple merge

diff --cc src/librustc_resolve/lib.rs
Simple merge

diff --cc src/librustc_typeck/check/demand.rs
Simple merge

diff --cc src/librustc_typeck/check/mod.rs
Simple merge