giles 2e329f273a Preserve ;; comments through MCP tree edit round-trips ...

Parser gains Comment(string) AST variant and ~comments:true mode that
captures top-level ;; lines instead of discarding them. All MCP edit
tools (replace_node, insert_child, delete_node, wrap_node, rename_symbol,
replace_by_pattern, insert_near, rename_across, pretty_print, write_file)
now preserve comments: separate before tree-tools operate (so index paths
stay correct), re-interleave after editing, emit in pretty_print_file.

Default parse path (evaluator, runtime, compiler) is unchanged — comments
are still stripped unless explicitly requested.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

2026-04-03 16:35:44 +00:00

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