Add structural equality and content hashing for FlatExpression.ExprTree#550

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copilot/fix-structural-equality-hash

Commits on May 6, 2026

Commits on May 7, 2026

docs: add xml comments for expr tree operators

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Commits on May 27, 2026

refactor: inline small flat constants
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Commits on May 28, 2026

Commits on May 29, 2026

refactor: simplify flat constant structural comparison
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Commits on Jun 17, 2026

Apply remaining changes
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Commits on Jun 20, 2026

inlining
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Commits on Jun 22, 2026

@wip starting simplification
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