feat(minifier): change foo?.['bar'] to foo?.bar

[sapphi-red]

ChainExpression's expression field is ChainElement and not Expression so the previous code did not run for optional chainings.

[sapphi-red]

• feat(minifier): change NaN to f64::NAN #8191
• feat(minifier): change foo?.['bar'] to foo?.bar #8176 👈 (View in Graphite)
• test(minifier): port tests from ConvertToDottedPropertiesTest #8175
• main

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[codspeed-hq]

CodSpeed Performance Report

Merging #8176 will not alter performance

_{Comparing 12-29-feat_minifier_change_foo_.bar_to_foo.bar_ (abafdfd) with 12-29-test_minifier_port_tests_from_converttodottedpropertiestest (5d4e172)}

Summary

✅ 29 untouched benchmarks

[Boshen]

Merge activity

• Dec 29, 2:15 AM EST: The merge label '0-merge' was detected. This PR will be added to the Graphite merge queue once it meets the requirements.
• Dec 29, 2:15 AM EST: A user added this pull request to the Graphite merge queue.
• Dec 29, 2:19 AM EST: The Graphite merge queue couldn't merge this PR because it had conflicts with the trunk branch.
• Dec 30, 3:20 AM EST: The merge label '0-merge' was detected. This PR will be added to the Graphite merge queue once it meets the requirements.