Add `midenc-fuzza` differential fuzzing harness#1087

Merged

greenhat merged 12 commits intonextfrom

May 5, 2026

Commits on May 5, 2026

test: add `midenc-fuzza` differential fuzzing harness

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test: prepend a common header to fuzz case sources

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test: add `fuzza-cov` task for compiler coverage reporting

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test: add incremental fuzza coverage task and agent-prompt template

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test: fix `CARGO_TARGET_DIR` leak in fuzza host build, add HIR-routing note to agent prompt

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test: add `bitops` fuzza case + clarify agent prompt

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test(fuzza): discover host cdylib via cargo's JSON build output

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docs(fuzza): add README, move agent-prompt usage out of the prompt itself

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test(fuzza): add control-flow coverage cases
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chore: clarify the reasons for disabled shrinking
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fix: build after rebase
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refactor: fold fuzza into integration tests, split agent tooling out

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