15ddf9c7b3
feat: Right align line numbers As part of my work on getting `annotate-snipptes` to be used as `rustc`'s renderer, I realized that `rustc` left-aligned line numbers, while `annotate-snippets` right-aligned them. This PR switches `rustc` to right-align the line numbers, matching `annotate-snippets`. In practice, this change isn't very noticeable in day-to-day output, as it only shows up when a diagnostic span contains line numbers with different lengths (9->10, 99->100, 999->1000, etc.). `rustc` ``` error[E0412]: cannot find type `F` in this scope --> $DIR/ui-testing-optout.rs:92:10 | 4 | type A = B; | ----------- similarly named type alias `A` defined here ... 92 | type E = F; | ^ help: a type alias with a similar name exists: `A` ``` `annotate-snippets` ``` error[E0412]: cannot find type `F` in this scope --> $DIR/ui-testing-optout.rs:92:10 | 4 | type A = B; | ----------- similarly named type alias `A` defined here ... 92 | type E = F; | ^ help: a type alias with a similar name exists: `A` ``` r? ``@compiler-errors`` |
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