tidy: reduce allocs

this reduces allocs in tidy from (dhat output)

```
==31349== Total:     1,365,199,543 bytes in 4,774,213 blocks
==31349== At t-gmax: 10,975,708 bytes in 66,093 blocks
==31349== At t-end:  2,880,947 bytes in 12,332 blocks
==31349== Reads:     5,210,008,956 bytes
==31349== Writes:    1,280,920,127 bytes
```
to
```
==66633== Total:     791,565,538 bytes in 3,503,144 blocks
==66633== At t-gmax: 10,914,511 bytes in 65,997 blocks
==66633== At t-end:  395,531 bytes in 941 blocks
==66633== Reads:     4,249,388,949 bytes
==66633== Writes:    814,119,580 bytes
```

by wrapping regex and updating `ignore` (effect probably not only from `ignore`, didn't measured)

…iaskrgr

Rollup of 8 pull requests

Successful merges:

 - rust-lang#120023 (tidy: reduce allocs)
 - rust-lang#120214 (match lowering: consistently lower bindings deepest-first)
 - rust-lang#120396 (Account for unbounded type param receiver in suggestions)
 - rust-lang#120423 (update indirect structural match lints to match RFC and to show up for dependencies)
 - rust-lang#120435 (Suggest name value cfg when only value is used for check-cfg)
 - rust-lang#120507 (Account for non-overlapping unmet trait bounds in suggestion)
 - rust-lang#120521 (Make `NonZero` constructors generic.)
 - rust-lang#120527 (Switch OwnedStore handle count to AtomicU32)

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

tidy: reduce allocs

this reduces allocs in tidy from (dhat output)

```
==31349== Total:     1,365,199,543 bytes in 4,774,213 blocks
==31349== At t-gmax: 10,975,708 bytes in 66,093 blocks
==31349== At t-end:  2,880,947 bytes in 12,332 blocks
==31349== Reads:     5,210,008,956 bytes
==31349== Writes:    1,280,920,127 bytes
```
to
```
==66633== Total:     791,565,538 bytes in 3,503,144 blocks
==66633== At t-gmax: 10,914,511 bytes in 65,997 blocks
==66633== At t-end:  395,531 bytes in 941 blocks
==66633== Reads:     4,249,388,949 bytes
==66633== Writes:    814,119,580 bytes
```

by wrapping regex and updating `ignore` (effect probably not only from `ignore`, didn't measured)

tidy: reduce allocs

this reduces allocs in tidy from (dhat output)

```
==31349== Total:     1,365,199,543 bytes in 4,774,213 blocks
==31349== At t-gmax: 10,975,708 bytes in 66,093 blocks
==31349== At t-end:  2,880,947 bytes in 12,332 blocks
==31349== Reads:     5,210,008,956 bytes
==31349== Writes:    1,280,920,127 bytes
```
to
```
==66633== Total:     791,565,538 bytes in 3,503,144 blocks
==66633== At t-gmax: 10,914,511 bytes in 65,997 blocks
==66633== At t-end:  395,531 bytes in 941 blocks
==66633== Reads:     4,249,388,949 bytes
==66633== Writes:    814,119,580 bytes
```

by wrapping regex and updating `ignore` (effect probably not only from `ignore`, didn't measured)

…iaskrgr

Rollup of 7 pull requests

Successful merges:

 - rust-lang#120023 (tidy: reduce allocs)
 - rust-lang#120396 (Account for unbounded type param receiver in suggestions)
 - rust-lang#120435 (Suggest name value cfg when only value is used for check-cfg)
 - rust-lang#120507 (Account for non-overlapping unmet trait bounds in suggestion)
 - rust-lang#120520 (Some cleanups around diagnostic levels.)
 - rust-lang#120575 (Simplify codegen diagnostic handling)
 - rust-lang#120670 (cleanup effect var handling)

Failed merges:

 - rust-lang#120423 (update indirect structural match lints to match RFC and to show up for dependencies)

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