Get native .pdb into Shared Framework symbol package

[wtgodbe]

Fixes #62123. Test build: https://dev.azure.com/dnceng/internal/_build/results?buildId=2718027&view=results

Matches instructions from arcade docs

[Copilot]

Pull Request Overview

This PR ensures native .pdb files are included in the Shared Framework symbol package by adding a custom MSBuild target and wiring it into the ReadyToRun file resolution process.

• Introduces _ResolveCopyLocalNativeReference target to copy native runtime assets.
• Hooks the new target into GetSharedFrameworkFilesForReadyToRunDependsOn in both runtime project files.

Reviewed Changes

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

File	Description
src/Framework/App.Runtime/src/Microsoft.AspNetCore.App.Runtime.sfxproj	Adds new target and appends it to GetSharedFrameworkFilesForReadyToRunDependsOn.
src/Framework/App.Runtime/src/Microsoft.AspNetCore.App.Runtime.Composite.sfxproj	Mirrors the addition of the new target and dependency in the composite project file.

[Copilot]

Pull Request Overview

This PR ensures that the native debugging symbols (.pdb) for aspnetcorev2_inprocess are packaged alongside the native runtime assets in the Shared Framework symbol package.

• Adds a <NativeRuntimeAsset> entry for the .pdb in the App.Runtime project
• Mirrors the same addition in the Composite App.Runtime project for consistency

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
src/Framework/App.Runtime/src/Microsoft.AspNetCore.App.Runtime.sfxproj	Added <NativeRuntimeAsset> entry for the .pdb
src/Framework/App.Runtime/src/Microsoft.AspNetCore.App.Runtime.Composite.sfxproj	Added <NativeRuntimeAsset> entry for the .pdb in composite

Comments suppressed due to low confidence (2)

src/Framework/App.Runtime/src/Microsoft.AspNetCore.App.Runtime.sfxproj:83

• Add an integration or packaging test to verify that the .pdb file is correctly included in the Shared Framework symbol package during build/publish.

Include="$(ArtifactsBinDir)InProcessRequestHandler\$(NativePlatform)\$(Configuration)\aspnetcorev2_inprocess.pdb"

src/Framework/App.Runtime/src/Microsoft.AspNetCore.App.Runtime.Composite.sfxproj:86

• Add a test to confirm the .pdb is included in the Composite Shared Framework symbol package as expected.

Include="$(ArtifactsBinDir)InProcessRequestHandler\$(NativePlatform)\$(Configuration)\aspnetcorev2_inprocess.pdb"

[Copilot]

[nitpick] Consider extracting this duplicated .pdb inclusion into a shared MSBuild target or props file to avoid copy-paste between the two projects.

[hoyosjs]

Usually other repos have done this in _SymbolFilesToPackage, but I'll let Jeremy comment on the more idiomatic way of doing this

[wtgodbe]

It feels to me like NativeRuntimeAsset is more "built in" since it's exposed in the docs, though it's not really purpose-built for symbols. I'm fine either way

[jkoritzinsky]

Yeah I prefer NativeRuntimeAsset over _SymbolFilesToPackage.

[wtgodbe]

Test build worked