feat: support NativeAOT-LLVM backend

[elringus]

https://sharp.elringus.com/guide/llvm

resolves #154

[Copilot]

Pull Request Overview

This PR implements support for the NativeAOT-LLVM backend by introducing a new LLVM property and adapting the assembly inspection and publishing behavior accordingly. Key changes include:

• Adding a new required boolean property (LLVM) to toggle the NativeAOT-LLVM behavior.
• Adjusting the file filtering in assembly inspection based on the LLVM flag.
• Updating tests, samples, benchmark data, and documentation to reflect the new LLVM backend support.

Reviewed Changes

Copilot reviewed 11 out of 18 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
src/cs/Bootsharp.Publish/Pack/BootsharpPack.cs	Introduces the LLVM property and adapts file filtering.
src/cs/Bootsharp.Publish.Test/Pack/SolutionInspectionTest.cs	Adds tests for behavior when LLVM is enabled.
src/cs/Bootsharp.Publish.Test/Pack/PackTest.cs	Updates tests with the new LLVM property.
samples/trimming/cs/Program.cs	Updates sample program to wrap log call in Main.
samples/trimming/README.md	Updates benchmark table to add .NET 9 LLVM measurements.
samples/bench/readme.md	Updates benchmark table columns and values.
samples/bench/dotnet-llvm/Program.cs	Minor formatting removal of an extra blank line.
samples/bench/bench.mjs	Updates label from ".NET" to ".NET AOT" for clarity.
docs/guide/llvm.md	Adds comprehensive documentation for the LLVM backend.
docs/guide/build-config.md	Documents the BootsharpLLVM property and its usage.
docs/.vitepress/config.ts	Updates navigation to include the new LLVM guide.

Files not reviewed (7)

• samples/bench/bootsharp/Boot.csproj: Language not supported
• samples/trimming/cs/Trimming.csproj: Language not supported
• src/cs/Bootsharp/Bootsharp.csproj: Language not supported
• src/cs/Bootsharp/Build/Bootsharp.props: Language not supported
• src/cs/Bootsharp/Build/Bootsharp.targets: Language not supported
• src/cs/Directory.Build.props: Language not supported
• src/js/test/cs/Test/Test.csproj: Language not supported

[Copilot]

[nitpick] Consider using the correct contraction "Doesn't" for better readability in the method name.

[elringus]

[nitpick] Consider using the correct contraction "Doesn't" for better readability in the method name.

Oh my dear AI overlord, I'd love to. But guess what happens if I use ' for an identifier in C#?

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (b0ec44d) to head (f41be82).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #175   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           47        47           
  Lines         1636      1640    +4     
  Branches       283       284    +1     
=========================================
+ Hits          1636      1640    +4     

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[hez2010]

Note that you may still need <NativeDebugSymbols>false</NativeDebugSymbols>, otherwise debug symbols may be embedded into the final wasm binary which would be a major size regression.

[elringus]

Note that you may still need <NativeDebugSymbols>false</NativeDebugSymbols>, otherwise debug symbols may be embedded into the final wasm binary which would be a major size regression.

Yeah, I have that when <BootsharpAggressiveTrimming> is enabled:

bootsharp/src/cs/Bootsharp/Build/Bootsharp.targets

Line 44 in 4fa1521

<NativeDebugSymbols>false</NativeDebugSymbols>

Thanks!