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NativeAot related test failed when linker input file path length over MAX_PATH #3236

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@filzrev

On my local Windows environment.

LatestNativeAotVersionIsSupported test failed with following linker error.

LINK : fatal error LNK1104: cannot open file 'C:\Projects\GitHub\thirdparty\BenchmarkDotNet\tests\BenchmarkDotNet.IntegrationTests\bin\Release\net10.0\BenchmarkDotNet.IntegrationTests-1\.artifacts\obj\BenchmarkDotNet.Autogenerated\release_nMAet10.0_win-x64\native\BenchmarkDotNet.IntegrationTests-1.sourcelink' [C:\Projects\GitHub\thirdparty\BenchmarkDotNet\tests\BenchmarkDotNet.IntegrationTests\bin\Release\net10.0\BenchmarkDotNet.IntegrationTests-1\BenchmarkDotNet.Autogenerated.csproj::TargetFramework=net10.0]
C:\Users\admin\.nuget\packages\microsoft.dotnet.ilcompiler\10.0.9\build\Microsoft.NETCore.Native.targets(396,5): error MSB3073: The command ""C:\Program Files\Microsoft Visual Studio\18\Insiders\VC\Tools\MSVC\14.51.36231\bin\Hostx64\x64\link.exe" @"C:\Projects\GitHub\thirdparty\BenchmarkDotNet\tests\BenchmarkDotNet.IntegrationTests\bin\Release\net10.0\BenchmarkDotNet.IntegrationTests-1\.artifacts\obj\BenchmarkDotNet.Autogenerated\release_net10.0_win-x64\native\link.rsp"" exited with code 1104. [C:\Projects\GitHub\thirdparty\BenchmarkDotNet\tests\BenchmarkDotNet.IntegrationTests\bin\Release\net10.0\BenchmarkDotNet.IntegrationTests-1\BenchmarkDotNet.Autogenerated.csproj::TargetFramework=net10.0]

It looks like issue is caused by following path length is 262 and over MAX_PATH (260 chars)

C:\Projects\GitHub\thirdparty\BenchmarkDotNet\tests\BenchmarkDotNet.IntegrationTests\bin\Release\net10.0\BenchmarkDotNet.IntegrationTests-1.artifacts\obj\BenchmarkDotNet.Autogenerated\release_net10.0_win-x64\native\BenchmarkDotNet.IntegrationTests-1.sourcelink

On my environment, LongPathsEnabled setting is enabled.
Though link.exe seems not accept path over MAX_PATH length. (It's confirmed by execution link.exe standalone)

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