Avoid shadowing diagnostics for `@override` methods #30821

Job	Run time
pre-commit	38s
Determine changes	9s
cargo fmt	18s
mkdocs	2m 27s
python package	1m 17s
cargo build (release)	6m 22s
cargo build (msrv)	3m 1s
benchmarks	5m 42s
cargo clippy	1m 50s
cargo fuzz	4m 29s
cargo shear	24s
cargo test (linux)	3m 20s
cargo test (wasm)	1m 13s
cargo test (windows)	7m 29s
test scripts	1m 4s
formatter instabilities and black similarity	0s
test ruff-lsp	22s
ecosystem	8m 43s
Fuzz the parser	0s
	48m 48s

Provide feedback