[Dogfooding] Enforce IDE0011 (Add braces) as a build warning for some…

Show progress bar for "Running code analysis on <Project/Solution>" execution

My prior attempt to enable this as a build warning in https://github.com/dotnet/roslyn/pull/44164 did not work due to #44201. This PR actually adds the build enforcement and fixes the violations.

NFE should no longer collect dumps by default. Instead, we want them to be controlled remotely if possible, or sampled via watson.

The snippet's curly braces should be escaped due to the `$`. The `$` isn't actually necessary, so I removed it.

Add IDE benchmark project targeting .NET Core

[Dogfooding] Enforce few more code style rules as build warnings in IDE projects

Do not simplify VB ObjectCreationExpression initializers into inferred initializers

Enable CSharpLanguageServiceTest_MultipleResults

Revert unused OptionsCollection in a test - this test does not use this options collection in master branch, but my prior commit in this PR attempted to use it in the test. This leads the test to fail, so I have restored the original semantics of the test and removed an unused local.

Move most of Metadata as Source down to the Features layer

Specialized serialization for options and naming preferences.

Manual fixes for IDE0059 violations for assignments of a non-constant value (we do not offer code fixes to remove such assignments which could have side effects)

# IDE0011: Add braces
csharp_prefer_braces = when_multiline:warning

# IDE0035: Remove unreachable code
dotnet_diagnostic.IDE0035.severity = warning

# IDE0059: Unnecessary assignment to a value
dotnet_diagnostic.IDE0059.severity = warning

Enable IDE0043 (Format string contains invalid placeholder) as build warning for IDE projects (CodeStyle, Features and Workspaces layers)

Implement an LSIF generator

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

1. Now we show the progress bar, which is useful for running this command on a solution with large number of projects
2. Periodically refresh the status bar text + progress, as opening any source file/background nuget restore operations overwrite the status bar text.

Closes #43255