Roslyn-analyzers: CompareSymbolsCorrectlyAnalyzer threw an exception of type NullReferenceException

[KrisVandermotten]

Consider the following code:

var d = new Dictionary<IMethodSymbol, int>(SymbolEqualityComparer.Default);

Compiling this results in:

Analyzer 'Microsoft.CodeAnalysis.Analyzers.MetaAnalyzers.CompareSymbolsCorrectlyAnalyzer' threw an exception of type 'System.NullReferenceException' with message 'De objectverwijzing is niet op een exemplaar van een object ingesteld.'.
Exception occurred with following context:
Compilation: [...]
IOperation: ObjectCreation
SyntaxTree: [...]
SyntaxNode: [...]

System.NullReferenceException: De objectverwijzing is niet op een exemplaar van een object ingesteld.
   at Microsoft.CodeAnalysis.Analyzers.MetaAnalyzers.CompareSymbolsCorrectlyAnalyzer.<>c__DisplayClass15_0.<HandleObjectCreation>b__0(IArgumentOperation arg)
   at System.Linq.ImmutableArrayExtensions.Any[T](ImmutableArray`1 immutableArray, Func`2 predicate)
   at Microsoft.CodeAnalysis.Analyzers.MetaAnalyzers.CompareSymbolsCorrectlyAnalyzer.HandleObjectCreation(OperationAnalysisContext& context, INamedTypeSymbol symbolType, INamedTypeSymbol symbolEqualityComparerType, ImmutableHashSet`1 collectionTypes)
   at Microsoft.CodeAnalysis.Analyzers.MetaAnalyzers.CompareSymbolsCorrectlyAnalyzer.<>c__DisplayClass12_1.<Initialize>b__3(OperationAnalysisContext context)

[michsco]

Seeing the exact same error.

[JasonBock]

Seeing the same with HashSet<ITypeSymbol>. The only way to get around this is to suppress the issue in code for now. :(

[Evangelink]

Seems to relate to #4470 and #4568, issues have been fixed and I have just tested on master, there is no longer any issue.

I am closing the issue, if you are still affected, could you please ping us and ideally provide some reproducer and the version of the analyzer you are using?!