Matthias Krüger 843920f0f6 Rollup merge of #121689 - GuillaumeGomez:rustdoc-highlighting-whitespace, r=notriddle ...

[rustdoc] Prevent inclusion of whitespace character after macro_rules ident

Discovered this bug randomly when looking at:

![image](https://github.com/rust-lang/rust/assets/3050060/dca38047-9085-4377-bfac-f98890224be4)

We were too eagerly trying to merge tokens that shouldn't be merged together (for example if you have a code comment followed by a code comment, we merge them in one attribute to reduce the DOM size).

r? ``@notriddle``

2024-02-29 00:16:59 +01:00

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