PR Summary

Two changes in this PR:

• Update folder path for storing optimization profile
• Add test to validate loaded assemblies and libraries on startup

Assemblies loaded on startup impact startup time. Sometimes we merge a commit that uses a new type that adds loading a new assembly on startup. We need to catch these and decide if it's worth the impact or delay loading when possible.

Assemblies that are loaded during startup are affected by the profile optimization automatically generated in powershell. The StartupProfileData-xxxx files record assemblies that are potentially used right after powershell starts. With such a file being available, powershell will eagerly load those assemblies using multiple CPU cores, even though some assemblies are not really needed for the current use case.

So, to accurately test the loaded assemblies at startup, we need to remove StartupProfileData-NonInteractive before run pwsh -noprofile -command ...

PR Checklist

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• User-facing changes
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• Testing - New and feature
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  • Make sure you've added a new test if existing tests do not effectively test the code changed
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