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Rust Compiler Coverage Diff Prototype

Goal

Compare coverage across test groups and identify where coverage is lacking.

What it does

Runs coverage on two test sets
Merges coverage data
Compares results
Suggests areas where tests are missing

How to run

./run_coverage.sh
./merge_profiles.sh
./export_coverage.sh
python3 coverage_diff.py
python3 prioritize.py

Output

Top uncovered compiler areas and suggested test focus