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Alok SwamyandClaude Opus 4.6
532b439063
Add bare-bracket rejection to Parser#expression in strict2 mode, so that
`['var']` is disallowed and `self['var']` is the required syntax.
- Add `Expression::SELF` constant ('self')
- Add `Parser#reject_bare_brackets` option, checked in `expression`
- Add `ParseContext#reject_bare_brackets?` and `force_reject_bare_brackets`
- Add `VariableLookupDrop` for `self['var']` scope-chain lookups
- Add `Variable#==` for rewriter state comparison
- Update `Context#find_variable` to return `VariableLookupDrop` for `self`
Co-Authored-By: Claude Opus 4.6 (1M context) <[email protected]>