C#: Fix issue with partial method extraction.#21351

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michaelnebel wants to merge 8 commits intogithub:mainfrom

michaelnebel:csharp/fixpartialmethod

Commits on Feb 20, 2026

C#: Add a partial method example with a body.
michaelnebel
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C#: Update partial method test to count the number of extracted bodies.
michaelnebel
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C#: Add data flow test for partial method.
michaelnebel
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C#: Cache the Block and ExpressionBody and streamline implementation too look for both when checking whether a body is available.
michaelnebel
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C#: Extract partial method declaration.
michaelnebel
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C#: Update test expected output.
michaelnebel
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C#: Streamline the partial implementation for properties and events.
michaelnebel
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C#: Update test expected output.
michaelnebel
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