[RGen] Allow to generate a 'new' syntax using a known type.

[mandel-macaque]

There are some types that are known and we want to create a new instance for using new rather than GetINativeObject/GetNSObject. Add a new
overload of the New method that allows to pass directly a TypeSyntax.

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[Copilot]

Pull Request Overview

This PR adds support for directly generating object creation syntax from a known TypeSyntax rather than TypeInfo, introduces two new known type entries, and covers this new path with a unit test.

• Introduce a New(TypeSyntax, ImmutableArray<ArgumentSyntax>) overload in BindingSyntaxFactory.Runtime.
• Add AudioBuffers and CMSampleBuffer to BindingSyntaxFactory.KnownTypes.
• Add NewTestsKnownType to verify the new overload with a known type.

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
tests/.../BindingSyntaxFactoryRuntimeTests.cs	Added a test (NewTestsKnownType) for generating new from a known type
src/.../BindingSyntaxFactory.Runtime.cs	Added New overload accepting TypeSyntax and updated docs
src/.../BindingSyntaxFactory.KnownTypes.cs	Defined AudioBuffers and CMSampleBuffer as reusable TypeSyntax

Comments suppressed due to low confidence (3)

src/rgen/Microsoft.Macios.Generator/Emitters/BindingSyntaxFactory.Runtime.cs:500

• The <param name="type"> description refers to TypeInfo but this overload accepts a TypeSyntax. Please update the description to reflect that it represents the syntax node for the type.

/// <param name="type">The information of the type of object to be created.</param>

tests/rgen/Microsoft.Macios.Generator.Tests/Emitters/BindingSyntaxFactoryRuntimeTests.cs:525

• [nitpick] The test name NewTestsKnownType deviates from the existing NewTests naming convention. Consider renaming it to NewTests_KnownType or similar to match the suite.

void NewTestsKnownType ()

src/rgen/Microsoft.Macios.Generator/Emitters/BindingSyntaxFactory.KnownTypes.cs:161

• You added a CMSampleBuffer known type but didn't include a corresponding unit test. Consider adding a test similar to NewTestsKnownType to cover this new entry.

/// <summary>

[vs-mobiletools-engineering-service2]

✅ API diff for current PR / commit

.NET ( No breaking changes )

• iOS: vsdrops gist ( No breaking changes )
• tvOS: vsdrops gist ( No breaking changes )
• MacCatalyst: vsdrops gist ( No breaking changes )
• macOS: vsdrops gist ( No breaking changes )

✅ API diff vs stable

.NET ( No breaking changes )

• iOS: vsdrops gist ( No breaking changes )
• tvOS: vsdrops gist ( No breaking changes )
• MacCatalyst: vsdrops gist ( No breaking changes )
• macOS: vsdrops gist ( No breaking changes )

ℹ️ Generator diff

Generator Diff: vsdrops (html) vsdrops (raw diff) gist (raw diff) - Please review changes)

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💻 [CI Build #b5ab1b8] Tests on macOS X64 - Mac Sonoma (14) passed 💻

✅ All tests on macOS X64 - Mac Sonoma (14) passed.

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💻 [CI Build #b5ab1b8] Tests on macOS M1 - Mac Monterey (12) passed 💻

✅ All tests on macOS M1 - Mac Monterey (12) passed.

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💻 [CI Build #b5ab1b8] Tests on macOS arm64 - Mac Sequoia (15) passed 💻

✅ All tests on macOS arm64 - Mac Sequoia (15) passed.

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💻 [CI Build #b5ab1b8] Tests on macOS M1 - Mac Ventura (13) passed 💻

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🚀 [CI Build #7747cec] Test results 🚀

Test results

✅ All tests passed on VSTS: test results.

🎉 All 115 tests passed 🎉

Tests counts

✅ cecil: All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (iOS): All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (MacCatalyst): All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (macOS): All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (Multiple platforms): All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (tvOS): All 1 tests passed. Html Report (VSDrops) Download
✅ framework: All 2 tests passed. Html Report (VSDrops) Download
✅ fsharp: All 4 tests passed. Html Report (VSDrops) Download
✅ generator: All 5 tests passed. Html Report (VSDrops) Download
✅ interdependent-binding-projects: All 4 tests passed. Html Report (VSDrops) Download
✅ introspection: All 4 tests passed. Html Report (VSDrops) Download
✅ linker: All 44 tests passed. Html Report (VSDrops) Download
✅ monotouch (iOS): All 8 tests passed. Html Report (VSDrops) Download
✅ monotouch (MacCatalyst): All 11 tests passed. Html Report (VSDrops) Download
✅ monotouch (macOS): All 9 tests passed. Html Report (VSDrops) Download
✅ monotouch (tvOS): All 8 tests passed. Html Report (VSDrops) Download
✅ msbuild: All 2 tests passed. Html Report (VSDrops) Download
✅ windows: All 3 tests passed. Html Report (VSDrops) Download
✅ xcframework: All 4 tests passed. Html Report (VSDrops) Download
✅ xtro: All 1 tests passed. Html Report (VSDrops) Download

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