C# 14: User defined compound assignment operators.#21372

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michaelnebel wants to merge 7 commits intogithub:mainfrom

michaelnebel:csharp14/usercompoundassignment

Commits on Apr 22, 2026

C#: Add support for compound assignment operators in the TryGetOperatorSymbol method.
michaelnebel
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C#: Re-use the GetTargetSymbol logic from invocations to find the right operator symbol (operators can also be declared in extensions).
michaelnebel
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C#: Add change-note.
michaelnebel
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C#: Add compound assignment operator QL classes.
michaelnebel
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C#: Add compound assignment operator call classes.
michaelnebel
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C#: Handle compound assignment operators in the dispatch logic (and assignable definition).
michaelnebel
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C#: Add tests and update expected test output.
michaelnebel
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