Inserting suppressions or test skips with sed or perl

Warns on an in-place sed or perl edit whose script contains a suppression or skip marker: @ts-ignore, @ts-expect-error, @ts-nocheck, eslint-disable, # type: ignore, # noqa, # pragma: no cover, it.skip / test.skip / describe.skip, xit / xdescribe / xtest, @pytest.mark.skip, Rust's #[ignore] and Go's t.Skip. One such command can silence a type error, a lint rule or a failing test across many files at once. It matches the in-place flag (-i, -i.bak, -Ei, --in-place, perl -pi) followed by a script naming a marker. It cannot parse the script, so it does not tell a replacement that inserts a marker from one that removes it, except the /…/d delete-line form, which is deliberately NOT matched; neither are sed -n and perl -ne, which only print. Misses a marker added with a file tool — the Edit tool carries no content — an in-place flag written after the script, and a marker assembled from pieces. Over-matches perl -I<dir>, which the case-insensitive match reads as -i. A quoted MENTION is not a use: a search, a git commit -m message, an echo or a curl --data body that only names this command is left alone. That holds only while every shell metacharacter stays inside the quotes, so git commit -m "x" && … is still caught; and the carrier must be the first word, so sudo grep … is not exempt.