Merge master to master-vs-deps

Add feature to convert switch statement to switch expression

* Set non-blocking mode per textView

* Update CompletionSource.cs

* unit test for switching between blocking and non-blocking

* can use the global option if switching it back and force

* Make methods overrides when pulling to base class with the make abstract option.
Remove abstract methods when pulling to base class with the make abstract option.

* Fix broken Unit tests

* Simplify code to add override modifier based on Code Review

* don't use generic ReplaceNode where not necessary in MembersPuller.PullMembersIntoClassAsync

* Revert "Revert "move StreamJsonRpc to 2.x from 1.3.x (#33960)" (#34654)"

This reverts commit 297aaf20.

* fix streamJsonRpc version conflict errors

* move stream json rpc to more recent version and remove unnecessary explicit dependency

* fix nuget version conflict issue

* json rpc array bug workaround

* move ToArray fix to lower layer

* underlying issue is fixed in stream json rpc already and inserted to VS before we going in.

removed workaround.

* Update dependencies from https://github.com/dotnet/arcade build 20190520.2

- Microsoft.DotNet.Arcade.Sdk - 1.0.0-beta.19270.2

* Update dependencies from https://github.com/dotnet/arcade build 20190521.7

- Microsoft.DotNet.Arcade.Sdk - 1.0.0-beta.19271.7

Extract out the AnalyzerConfigDocument related changes from #35691

Modify get contained document to accept null id as input.

Use "preview" language version for Miscellaneous Files

Merge master to master-vs-deps

Fix violations of CA2237 (Mark ISerializable types with serializable)

Add ImportingConstructor attribute to fix RS0034 (Exported parts should have ImportingConstructor)

Add missing constructors to fix RS0034 (Exported parts should have ImportingConstructor)

Implement external access APIs for Apex

# Conflicts:
#	src/Features/CSharp/Portable/CSharpFeaturesResources.resx
#	src/Features/Core/Portable/Diagnostics/Analyzers/IDEDiagnosticIds.cs
#	src/VisualStudio/CSharp/Impl/CSharpVSResources.resx
#	src/VisualStudio/CSharp/Impl/Options/Formatting/StyleViewModel.cs
#	src/VisualStudio/CSharp/Impl/xlf/CSharpVSResources.cs.xlf
#	src/VisualStudio/CSharp/Impl/xlf/CSharpVSResources.de.xlf
#	src/VisualStudio/CSharp/Impl/xlf/CSharpVSResources.es.xlf
#	src/VisualStudio/CSharp/Impl/xlf/CSharpVSResources.fr.xlf
#	src/VisualStudio/CSharp/Impl/xlf/CSharpVSResources.it.xlf
#	src/VisualStudio/CSharp/Impl/xlf/CSharpVSResources.ja.xlf
#	src/VisualStudio/CSharp/Impl/xlf/CSharpVSResources.ko.xlf
#	src/VisualStudio/CSharp/Impl/xlf/CSharpVSResources.pl.xlf
#	src/VisualStudio/CSharp/Impl/xlf/CSharpVSResources.pt-BR.xlf
#	src/VisualStudio/CSharp/Impl/xlf/CSharpVSResources.ru.xlf
#	src/VisualStudio/CSharp/Impl/xlf/CSharpVSResources.tr.xlf
#	src/VisualStudio/CSharp/Impl/xlf/CSharpVSResources.zh-Hans.xlf
#	src/VisualStudio/CSharp/Impl/xlf/CSharpVSResources.zh-Hant.xlf

Fixes #35611

Since we don't know what type of files they are, we should always
use the absolute, absolute latest, which is Preview for C#.

Fixes https://github.com/dotnet/roslyn/issues/35857

* Allow readonly methods to accept span parameters from stackalloc

* Cleanup

* Add relevant spec language to CheckInvocationArgMixing

* isReadOnlyInvocation -> isReceiverRefReadOnly

* Move isReceiverRefReadOnly to local function

Fixes #35661

Merge master to master-vs-deps

* Also fix the type of a bound node (argument to a ctor) so it agrees with the corresponding parameter.
Fixes #35764
* Handle nested stackalloc initializers in the spiller and add a test that it works.

* Update dependencies from https://github.com/dotnet/arcade build 20190503.8

- Microsoft.DotNet.Arcade.Sdk - 1.0.0-beta.19253.8

* Update dependencies from https://github.com/dotnet/arcade build 20190504.1

- Microsoft.DotNet.Arcade.Sdk - 1.0.0-beta.19254.1

* Update dependencies from https://github.com/dotnet/arcade build 20190505.2

- Microsoft.DotNet.Arcade.Sdk - 1.0.0-beta.19255.2

* Update dependencies from https://github.com/dotnet/arcade build 20190506.12

- Microsoft.DotNet.Arcade.Sdk - 1.0.0-beta.19256.12

* Update dependencies from https://github.com/dotnet/arcade build 20190507.7

- Microsoft.DotNet.Arcade.Sdk - 1.0.0-beta.19257.7

* Update dependencies from https://github.com/dotnet/arcade build 20190508.5

- Microsoft.DotNet.Arcade.Sdk - 1.0.0-beta.19258.5

* Update dependencies from https://github.com/dotnet/arcade build 20190509.9

- Microsoft.DotNet.Arcade.Sdk - 1.0.0-beta.19259.9

* Update dependencies from https://github.com/dotnet/arcade build 20190510.2

- Microsoft.DotNet.Arcade.Sdk - 1.0.0-beta.19260.2

* Update dependencies from https://github.com/dotnet/arcade build 20190511.1

- Microsoft.DotNet.Arcade.Sdk - 1.0.0-beta.19261.1

* Update dependencies from https://github.com/dotnet/arcade build 20190512.1

- Microsoft.DotNet.Arcade.Sdk - 1.0.0-beta.19262.1

* Update dependencies from https://github.com/dotnet/arcade build 20190513.3

- Microsoft.DotNet.Arcade.Sdk - 1.0.0-beta.19263.3

* Update dependencies from https://github.com/dotnet/arcade build 20190514.13

- Microsoft.DotNet.Arcade.Sdk - 1.0.0-beta.19264.13

* Update dependencies from https://github.com/dotnet/arcade build 20190516.2

- Microsoft.DotNet.Arcade.Sdk - 1.0.0-beta.19266.2

* Update dependencies from https://github.com/dotnet/arcade build 20190516.4

- Microsoft.DotNet.Arcade.Sdk - 1.0.0-beta.19266.4

* Update dependencies from https://github.com/dotnet/arcade build 20190517.7

- Microsoft.DotNet.Arcade.Sdk - 1.0.0-beta.19267.7

* Update dependencies from https://github.com/dotnet/arcade build 20190518.2

- Microsoft.DotNet.Arcade.Sdk - 1.0.0-beta.19268.2

* Update dependencies from https://github.com/dotnet/arcade build 20190520.1

- Microsoft.DotNet.Arcade.Sdk - 1.0.0-beta.19270.1

* Fix up XLF files

* Clear AssemblyVersion

Merge release/dev16.2-preview1-vs-deps to master-vs-deps

* Add Sort Usings command back to the Edit > IntelliSense menu

* Remove old style command args and registration