fix: parse large Solidity Test build info outputs

[BROCCOLO1D]

Summary

• Fixes Solidity Test build-info output parsing for very large outputs that can exceed V8's max string length
• Adds a byte scanner that extracts only source ASTs and contract method identifiers needed by inline-config and EIP-712 collectors
• Adds focused parser coverage for large bytecode-heavy outputs and escaped source names

Why

Large projects can produce build-info output JSON files over Node's maximum string length. The Solidity Test inline-config and EIP-712 collectors only need small subtrees from those outputs, but previously decoded and parsed the full JSON string.

Changes

• Add parseSolidityTestBuildInfoOutput for selective build-info output parsing from bytes
• Use it in the inline-config and EIP-712 collectors
• Add a changeset for hardhat

Validation

• pnpm test:file packages/hardhat/test/internal/builtin-plugins/solidity-test/build-info-output.ts
• pnpm test:file packages/hardhat/test/internal/builtin-plugins/solidity-test/eip712/index.ts
• pnpm test:file packages/hardhat/test/internal/builtin-plugins/solidity-test/inline-config/index.ts
• pnpm lint:file packages/hardhat/src/internal/builtin-plugins/solidity-test/build-info-output.ts packages/hardhat/src/internal/builtin-plugins/solidity-test/inline-config/index.ts packages/hardhat/src/internal/builtin-plugins/solidity-test/eip712/index.ts packages/hardhat/test/internal/builtin-plugins/solidity-test/build-info-output.ts

Scope

Refs #8341

[changeset-bot]

🦋 Changeset detected

Latest commit: fc2bac1

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
hardhat	Patch

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[claude]

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