* handle reserved words in names/parameters correctly
* parser: accept reserved words as dependency names too
Addresses review feedback on the depends list: parseMetadata() still
hard-required LidlToken::Ident for each entry, so a dependency named after a
keyword (e.g. `version`) would fail to parse even though lidlSerialize()
emits it unquoted. Use atName() there too, consistent with the
contextual-keyword rule applied to the other name positions. Adds a
KeywordAsDependencyName regression test.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
