Port C# UseDefaultLiteral analyzer/fixer/tests to shared layer

* Update dependencies from https://github.com/dotnet/arcade build 20200318.1

- Microsoft.DotNet.Arcade.Sdk - 5.0.0-beta.20168.1

* Update dependencies from https://github.com/dotnet/arcade build 20200318.2

- Microsoft.DotNet.Arcade.Sdk - 5.0.0-beta.20168.2

* Update dependencies from https://github.com/dotnet/arcade build 20200320.1

- Microsoft.DotNet.Arcade.Sdk - 5.0.0-beta.20170.1

* Update dependencies from https://github.com/dotnet/arcade build 20200320.4

- Microsoft.DotNet.Arcade.Sdk - 5.0.0-beta.20170.4
Co-authored-by: Ndotnet-maestro[bot] <dotnet-maestro[bot]@users.noreply.github.com>

Revert "Merge pull request #42622 from gafter/records3-merge-2020-03-20"

This reverts commit 3c38a9a7, reversing
changes made to 20643918.

Simplify the progress system for find-references

Remove workspace dependency from 'use pattern matching'.

Merge release/dev16.6-preview2 to master

merge master into features/patterns3

Merge branch 'findUsagesProgress' of https://github.com/CyrusNajmabadi/roslyn into findUsagesProgress

Diagnostics for FailFast

Move UseNullPropagation analyzer/fixers/tests to shared layer

Also two review fixes from https://github.com/dotnet/roslyn/pull/42474

Move SyntaxGenerator helpers that are not yet available in CodeStyle layer into SyntaxGeneratorInternal service.

Improve conflict marker detection and fixing

Merge release/dev16.6-preview2 to master

Remove capturing of log content during NFW reporting, filter logs