…ultiple-lines, r=oli-obk

emitter: current substitution can be multi-line

Fixes rust-lang#89280.

In `splice_lines`, there is some arithmetic to compute the required alignment such that future substitutions in a suggestion are aligned correctly. However, this assumed that the current substitution's span was only on a single line. In circumstances where this was not true, it could result in a arithmetic overflow when the substitution's end column was less than the substitution's start column.

r? `@oli-obk`

…ultiple-lines, r=oli-obk

emitter: current substitution can be multi-line

Fixes rust-lang#89280.

In `splice_lines`, there is some arithmetic to compute the required alignment such that future substitutions in a suggestion are aligned correctly. However, this assumed that the current substitution's span was only on a single line. In circumstances where this was not true, it could result in a arithmetic overflow when the substitution's end column was less than the substitution's start column.

r? ``@oli-obk``

…ultiple-lines, r=oli-obk

emitter: current substitution can be multi-line

Fixes rust-lang#89280.

In `splice_lines`, there is some arithmetic to compute the required alignment such that future substitutions in a suggestion are aligned correctly. However, this assumed that the current substitution's span was only on a single line. In circumstances where this was not true, it could result in a arithmetic overflow when the substitution's end column was less than the substitution's start column.

r? ```@oli-obk```

…askrgr

Rollup of 10 pull requests

Successful merges:

 - rust-lang#89509 (Stabilize `unreachable_unchecked` as `const fn`)
 - rust-lang#89898 (Remove alloc::prelude)
 - rust-lang#89902 (Restrict the aarch64 outline atomics test to Linux)
 - rust-lang#89906 (Moved format-version constant to rustdoc-json-types)
 - rust-lang#89912 (emitter: current substitution can be multi-line)
 - rust-lang#89914 (Emit impl difference error for GenericBoundFailure too)
 - rust-lang#89915 (Some outlives cleanup)
 - rust-lang#89918 (Add some GATs related regression tests)
 - rust-lang#89921 ([fuchsia] Update process info struct)
 - rust-lang#89925 (updating docs to mention usage of AtomicBool)

Failed merges:

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