bors e737694a4d Auto merge of #88175 - camsteffen:let-desugar-span, r=Manishearth
Add expansion to while desugar spans

In the same vein as #88163, this reverts a change in Clippy behavior as a result of #80357 (and reverts some `#[allow]`s): This changes `clippy::blocks_in_if_conditions` to not fire on `while` loops. Though we might actually want Clippy to lint those cases, we should introduce the change purposefully, with tests, and possibly under a different lint name.

The actual change here is to add a desugaring expansion to the spans when lowering a `while` loop.

r? `@Manishearth`
2021-10-03 21:44:10 +00:00
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