RS2000 ignores target-typed new expressions and creation outside of immediate field-initialization

[ErikWe]

Analyzer

Diagnostic ID: RS2000: Add analyzer diagnostic IDs to analyzer release

Analyzer source

SDK: Built-in CA analyzers in .NET 5 SDK or later

Version: SDK 6.0.201

NuGet Package: Microsoft.CodeAnalysis.Analyzers

Version: 3.3.3 (Latest)

Describe the bug

RS2000 is not displayed in two separate circumstances, despite the diagnostic ID not being listed in the analyzer release:

1. A DiagnosticDescriptor is created using a 'target-typed new expression', i.e

class Foo
{
    DiagnosticDescriptor Rule = new(...);
}

2. A DiagnosticDescriptor is created outside of immediate field-initialization, e.g

class Foo
{
    DiagnosticDescriptor Rule { get; } = new DiagnosticDescriptor(...);
}

However, creating a DiagnosticDescriptor in the following way results in RS2000:

class Foo
{
    DiagnosticDescriptor Rule = new DiagnosticDescriptor(...);
}

Expected behavior

If the diagnostic ID is not already listed in the analyzer release, RS2000 should be displayed - as is the case in the final example above.

Actual behavior

RS2000 is not displayed.

Additional information

Related diagnostics are affected in similar ways, such as RS1017.

[Youssef1313]

Also #5890

Regarding the property initializer case, I don't know if the behavior was intended or not. @mavasani Do you know if property initializers should be supported?