fix filecheck typos in tests

[klensy]

Fixes few filecheck annotation typos in tests.

[rustbot]

r? @Mark-Simulacrum

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[klensy]

error: PRs changing the `nightly` channel should be sent to the `master` branch! this was changed to main, isn't it?

[lcnr]

CI will be fixed in #148564

[rustbot]

This PR was rebased onto a different main commit. Here's a range-diff highlighting what actually changed.

Rebasing is a normal part of keeping PRs up to date, so no action is needed—this note is just to help reviewers.

[klensy]

@tmiasko in #147890 tests/codegen-llvm/deduced-param-attrs.rs was changed but filecheck annotation was added with typo, now with fixed annotation test didn't pass.