C# 14: Support for user-defined increment and decrement operators.#21791

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michaelnebel wants to merge 13 commits intogithub:mainfrom

michaelnebel:csharp/userunaryoperators

Commits on May 4, 2026

C#: Add Increment/Decrement instance operator test example and update test expected output.
michaelnebel
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Commits on May 6, 2026

C#: Add operator calls for postfix unary expression (whenever possible) as we also do for prefix unary expressions.
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C#: Improve the GetCallType method to also take extension operators into account.
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C#: Do not change kind of increment/decrement expressions to operator invocations and cleanup the implementation.
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C#: Rename Unary to PrefixUnary.
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C#: Move the adjust kind to the Cast class.
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C#: Update the DB scheme to consider increment/decrement expressions as operator calls.
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C#: Update the DB scheme to consider more unary operators to be operatorcalls as well.
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C#: Update the QL library to reflect the changes to the DB scheme.
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