Emit warnings when functions omitted when visualizing

[saulshanabrook]

Adds support for upstream egglog change to emit when serializing and functions or calls were omitted based on maxmimums

[Copilot]

Pull Request Overview

Adds warning support when visualizing egglog graphs to alert users when functions or calls are omitted due to maximum limits. This provides better feedback about incomplete visualizations.

• Implements warning emission when functions are discarded or truncated during serialization
• Adds helper method to map egglog function names to Python function names for clearer warnings
• Includes tests to verify warning behavior for both max_functions and max_calls_per_function limits

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
python/egglog/egraph_state.py	Adds possible_egglog_functions method to map egglog function names to Python function strings
python/egglog/egraph.py	Integrates warning emission in _serialize method when functions are discarded or truncated
python/tests/test_high_level.py	Adds test cases to verify warning behavior for serialization limits

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[saulshanabrook]

@actions-user changelog

[codspeed-hq]

CodSpeed Instrumentation Performance Report

Merging #336 will not alter performance

_{Comparing warning-viz (6586a4b) with main (0fc9674)}

Summary

✅ 7 untouched benchmarks