Something is off during tests

I cannot explain better, but `Code does not terminate` does not increase my confidence.

```
kant@gentoo ~/d/Cesium $ dotnet test
Determining projects to restore...
All projects are up-to-date for restore.
Cesium.Runtime -> /home/kant/d/Cesium/Cesium.Runtime/bin/Debug/net6.0/Cesium.Runtime.dll
Cesium.Runtime -> /home/kant/d/Cesium/Cesium.Runtime/bin/Debug/netstandard2.0/Cesium.Runtime.dll
Cesium.IntegrationTests -> /home/kant/d/Cesium/Cesium.IntegrationTests/bin/Debug/net7.0/Cesium.IntegrationTests.dll
Test run for /home/kant/d/Cesium/Cesium.IntegrationTests/bin/Debug/net7.0/Cesium.IntegrationTests.dll (.NETCoreApp,Version=v7.0)
Cesium.Ast -> /home/kant/d/Cesium/Cesium.Ast/bin/Debug/net7.0/Cesium.Ast.dll
Cesium.Core -> /home/kant/d/Cesium/Cesium.Core/bin/Debug/net7.0/Cesium.Core.dll
Microsoft (R) Test Execution Command Line Tool Version 17.5.0 (x64)
Copyright (c) Microsoft Corporation. All rights reserved.

Cesium.Preprocessor -> /home/kant/d/Cesium/Cesium.Preprocessor/bin/Debug/net7.0/Cesium.Preprocessor.dll
Cesium.Parser -> /home/kant/d/Cesium/Cesium.Parser/bin/Debug/net7.0/Cesium.Parser.dll
Cesium.Runtime.Tests -> /home/kant/d/Cesium/Cesium.Runtime.Tests/bin/Debug/net7.0/Cesium.Runtime.Tests.dll
Test run for /home/kant/d/Cesium/Cesium.Runtime.Tests/bin/Debug/net7.0/Cesium.Runtime.Tests.dll (.NETCoreApp,Version=v7.0)
Starting test execution, please wait...
Microsoft (R) Test Execution Command Line Tool Version 17.5.0 (x64)
Copyright (c) Microsoft Corporation. All rights reserved.

A total of 1 test files matched the specified pattern.
Starting test execution, please wait...
A total of 1 test files matched the specified pattern.

Passed! - Failed: 0, Passed: 1, Skipped: 0, Total: 1, Duration: < 1 ms - Cesium.Runtime.Tests.dll (net7.0)

Passed! - Failed: 0, Passed: 142, Skipped: 0, Total: 142, Duration: 1 m 8 s - Cesium.IntegrationTests.dll (net7.0)
Cesium.Test.Framework -> /home/kant/d/Cesium/Cesium.Test.Framework/bin/Debug/net7.0/Cesium.Test.Framework.dll
Cesium.CodeGen -> /home/kant/d/Cesium/Cesium.CodeGen/bin/Debug/net7.0/Cesium.CodeGen.dll
Cesium.Parser.Tests -> /home/kant/d/Cesium/Cesium.Parser.Tests/bin/Debug/net7.0/Cesium.Parser.Tests.dll
Cesium.CodeGen.Tests -> /home/kant/d/Cesium/Cesium.CodeGen.Tests/bin/Debug/net7.0/Cesium.CodeGen.Tests.dll
Test run for /home/kant/d/Cesium/Cesium.Parser.Tests/bin/Debug/net7.0/Cesium.Parser.Tests.dll (.NETCoreApp,Version=v7.0)
Test run for /home/kant/d/Cesium/Cesium.CodeGen.Tests/bin/Debug/net7.0/Cesium.CodeGen.Tests.dll (.NETCoreApp,Version=v7.0)
Microsoft (R) Test Execution Command Line Tool Version 17.5.0 (x64)
Copyright (c) Microsoft Corporation. All rights reserved.
Microsoft (R) Test Execution Command Line Tool Version 17.5.0 (x64)
Copyright (c) Microsoft Corporation. All rights reserved.

Starting test execution, please wait...
Starting test execution, please wait...
A total of 1 test files matched the specified pattern.
A total of 1 test files matched the specified pattern.

Passed! - Failed: 0, Passed: 137, Skipped: 0, Total: 137, Duration: 1 s - Cesium.Parser.Tests.dll (net7.0)
Code does not terminate

Passed! - Failed: 0, Passed: 222, Skipped: 0, Total: 222, Duration: 4 s - Cesium.CodeGen.Tests.dll (net7.0)
```