Esteban Küber b7fc1a7431 Add trait diff highlighting logic and use it in E0277 ...

When a trait is not implemented for a type, but there *is* an `impl`
for another type or different trait params, we format the output to
use highlighting in the same way that E0308 does for types.

The logic accounts for 3 cases:
- When both the type and trait in the expected predicate and the candidate are different
- When only the types are different
- When only the trait generic params are different

For each case, we use slightly different formatting and wording.

2024-11-02 03:08:04 +00:00

..

issue-45124.rs

…

try-block-bad-lifetime.rs

…

try-block-bad-lifetime.stderr

…

try-block-bad-type.rs

…

try-block-bad-type.stderr

…

try-block-catch.rs

…

try-block-catch.stderr

…

try-block-in-edition2015.rs

…

try-block-in-edition2015.stderr

…

try-block-in-match-arm.rs

…

try-block-in-match.rs

…

try-block-in-return.rs

…

try-block-in-while.rs

…

try-block-in-while.stderr

…

try-block-maybe-bad-lifetime.rs

…

try-block-maybe-bad-lifetime.stderr

…

try-block-opt-init.rs

…

try-block-opt-init.stderr

…

try-block-type-error.rs

…

try-block-type-error.stderr

…

try-block-unreachable-code-lint.rs

…

try-block-unreachable-code-lint.stderr

…

try-block-unused-delims.fixed

…

try-block-unused-delims.rs

…

try-block-unused-delims.stderr

…

try-block.rs

…

try-is-identifier-edition2015.rs

…