change suspicious_operation_groupings to work on the HIR instead of the AST

[esther-ff]

changelog: [suspicious_operation_groupings]: changed the lint to work on the HIR and included a check for the existence of a suggested field.

fixes #7086

As a short message, i have discovered a potential false positive, however i am not sure whether it should be part of this PR.

(I've also made a slight mistake with the last commit in this PR, i hope it doesn't affect anything. I'm a bit new to this)

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[github-actions]

No changes for 2d377f2

[samueltardieu]

@esther-ff Is the new hit legitimate? https://github.com/rust-lang/rust-clippy/actions/runs/16838235672#user-content-suspicious-operation-groupings

[esther-ff]

From what i see, it's not. I'll have to figure that out. I think it's just a case of checking whether the expression (so, self.coords in this case) has the suggested method? I think i can implement that soon.

[rustbot]

Some changes occurred in clippy_lints/src/doc

cc @notriddle

[samueltardieu]

@esther-ff Did you mis-rebase or something like that?

[esther-ff]

Yeah, currently trying to fix it. Very sorry.

Alright! Managed to fix it.

[rustbot]

This PR was rebased onto a different master commit. Here's a range-diff highlighting what actually changed.

Rebasing is a normal part of keeping PRs up to date, so no action is needed—this note is just to help reviewers.