Move most of Metadata as Source down to the Features layer

Specialized serialization for options and naming preferences.

Implement an LSIF generator

Update src/Workspaces/SharedUtilitiesAndExtensions/Compiler/Core/NamingStyles/Serialization/SymbolSpecification.cs

Remove skipAnalyzers from vscode tasks

Remove pooled Stopwatch

Fix link in readme

Add 'using' misplacement fixer to code-cleanup

SharedStopwatch already offers a more efficient alternative.

- Microsoft.Net.Compilers.Toolset: 3.7.0-1.20254.1 -> 3.7.0-2.20259.1
Co-authored-by: Ndotnet-maestro[bot] <dotnet-maestro[bot]@users.noreply.github.com>

Relates to #44102

When caching dependent-type-results, don't try to re-infer the originating project.

None of this actually depended on the editor in any meaningful way.

Code fix for CS0109 (The new keyword is not required)

Remove changes to XAML and F# IInlineRenameInfo interfaces

Skip executing analyzers by default on local builds for solutions in the repo

This adds some minimal testing for the output formats directly; the
majority of this is removing the global static that was assigning Ids
and replacing it with an IdFactory to avoid one test impacting another
in terms of Id generation.

 Exclude csc.exe from optprof profiling 

Tests were named with "Async" suffixes that shouldn't have been done.