Enable tests and update features to support new language changes around patterns.

Closes #45564.
Related to #45110.

* Ensure we associate an error with all missing identifiers in the parser.

* Fix test

* REstore original error

Merge release/dev16.7 to master

Fix code analysis messages in command-line parser

Support applying attributes to properties and fields that are created to back primary constructor parameters in records. (#45908)

Closes #44691.

Update TestImpact public key in additional IVTs

#3438, use standard Type Conversion Functions when possible

* InteractiveHost for .NET Core

* Merge fix

* Fixes

* Typo

* Workaround for https://github.com/dotnet/interactive-window/issues/156

* Fix

* Update OptProf config

* Fix deployment of rsp files

* Fix signing.

* Clean up unit tests dependencies.

* Remove unnecessary references.

* Fix reset interactive command

* Fix OptProf config

* Add missing project refs

* Fix InteractiveHost deployment

* Process rsp file fully in InteractiveHost process and send back results.

* Fix build from VS.

* Retrieve metadata resolver parameters from InteractiveHost process.

Simplify keeping search paths in-sync between InteractiveHost and InteractiveEvaluator.

* Fixes

* Fixes

* Check for failures to create process in unit tests

* Test

* Pending buffers

* Fix submission project creation

* Logging

* Serialize exceution and process initialization

* Fix reference completion, resolution.

* MetadataReferenceResolver fixes

* Fix failing .NET Core tests

* Target netcoreapp.

* Set DOTNET_ROOT

* Fix NGEN/OptProf

* Avoid loading Microsoft.CodeAnalysis.Scripting

* Fix

* Feedback

* Feedback

* Feedback

* Comment on dependent target

* Disable interpreting of strings as DateTime during deserialization:

* Merge fix

Continue on captured context after switching to the main thread

Add support to detect unnecessary inline SuppressMessageAttribute suppressions

Remove experimental feed

* Use TestHost consistently

* Comments

* Fix

* RenameTestHost

* Renaming

Mark apis as shipped

Fix VB case correction for named tuple identifiers

This reverts commit ca662f23.

[Dogfooding] Extend existing IDE code style enforcement rules to EditorFeatures layer

Skip flaky test

RemotableDataService refactoring

Remove trailing commas during conversion to class

Related to #45296.

From specification:
If the record is derived from `object`, the record type includes a synthesized readonly property equivalent to a property declared as follows:
```C#
protected Type EqualityContract { get; };
```
The property is `virtual` unless the record type is `sealed`.
The property can be declared explicitly. It is an error if the explicit declaration does not match the expected signature or accessibility, or if the explicit declaration doesn't allow overiding it in a derived type and the record type is not `sealed`.

If the record type is derived from a base record type `Base`, the record type includes a synthesized readonly property equivalent to a property declared as follows:
```C#
protected override Type EqualityContract { get; };
```

The property can be declared explicitly. It is an error if the explicit declaration does not match the expected signature or accessibility, or if the explicit declaration doesn't allow overiding it in a derived type and the record type is not `sealed`. It is an error if either synthesized, or explicitly declared property doesn't override a property with this signature in the record type `Base` (for example, if the property is missing in the `Base`, or sealed, or not virtual, etc.).
The synthesized property returns `typeof(R)` where `R` is the record type.