Use simple IsKind pattern.

Remove unnecessary check in SimplifyTypeNames.

- Microsoft.DotNet.Arcade.Sdk - 5.0.0-beta.20068.1

Pass along cancellation token where appropriate instead of using CancellationToken.None

* Update dependencies from https://github.com/dotnet/arcade build 20200116.1

- Microsoft.DotNet.Arcade.Sdk - 5.0.0-beta.20066.1

* Update dependencies from https://github.com/dotnet/arcade build 20200117.2

- Microsoft.DotNet.Arcade.Sdk - 5.0.0-beta.20067.2

Rewrite simplify type names using SemanticModel action and a tree walker

Capturing lambdas should be avoided in core compiler code
as they generate excess allocations

Fixes #41054

Avoid expensive captures

* Insert correct `WithNullableContext` binder into the binder chain to ensure speculative models return correct information based on speuclation location.

* Refactor Nullable context options to rely on an enum instead of two bools.
Break out the BuckStopsHereBinder's code to allow sharing.
Fix binder ordering issue for TryGetSpeculativeSemanticModelForMethodBody.

* Make NullableContextState.State a byte for space.

Addresses 3200MB allocations while analyzing Roslyn.sln.

Addresses 950MB allocations while analyzing Roslyn.sln.

Addresses 950MB allocations while analyzing Roslyn.sln.

Addresses 2400MB allocations while analyzing Roslyn.sln.

Annotate SyntaxNodeOrToken

Use master-vs-deps as ibc source branch as there is no VS branch to i…

Addresses 815MB allocations analyzing Roslyn.sln.

Addresses 680MB allocations analyzing Roslyn.sln.

Make AnalyzerActions a value type

Fix VisualBasicSyntaxFactsService.IsLeftSideOfCompoundAssignment

Annotate implementations of IErrorTypeSymbol

Use master-vs-deps as ibc source branch as there is no VS branch to insert into (and therefore the binding redirects have the incorrect roslyn version)

Annotate implementations of IDiscardSymbol

Disable tiered compilation for AnalyzerRunner

* Update dependencies from https://github.com/dotnet/arcade build 20200112.1

- Microsoft.DotNet.Arcade.Sdk - 5.0.0-beta.20062.1

* Update dependencies from https://github.com/dotnet/arcade build 20200113.2

- Microsoft.DotNet.Arcade.Sdk - 5.0.0-beta.20063.2

* Update dependencies from https://github.com/dotnet/arcade build 20200115.5

- Microsoft.DotNet.Arcade.Sdk - 5.0.0-beta.20065.5

Use a non-localized category string for DiagnosticDescriptors

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