AfterShip / clickhouse-sql-parser / 27258883323

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Fix index-out-of-range panic in wrapError at EOF (#272)

`wrapError` walks `p.lexer.input[i]` for `i < int(p.Pos())` to compute the
error line/column. At EOF `p.Pos()` can exceed `len(input)`, so on input like
`CREATE--` (a trailing comment leaves the position past the end) it panics
with "index out of range".

Clamp the loop bound to `len(p.lexer.input)`.

Add `CREATE--` to TestParser_InvalidSyntax to reproduce: it panicked before
the fix and now returns a proper error.

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>

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