Expression bodied function crashes analyzers

[memark]

When using a simple EBF (expression based function) the analyzers crash in Visual Studio 15.7.3.

To reproduce:

• Create a new solution.
• Add a new C# project (.NET Core/Standard/Framework doesn't matter)
• Add a package reference to FluentAssertions.Analyzers 0.10.0.
• Add the following code

public class TestClass
{
    private SomeClass CreateSomeClass() => new SomeClass();
 
    public class SomeClass
    { }
}

• Build the project.

Expected:
No errors.

Actual:

1>CSC : warning AD0001: Analyzer 'FluentAssertions.Analyzers.CollectionShouldHaveCountLessOrEqualToAnalyzer' threw an exception of type 'System.NullReferenceException' with message 'Object reference not set to an instance of an object.'.
1>CSC : warning AD0001: Analyzer 'FluentAssertions.Analyzers.CollectionShouldHaveCountGreaterOrEqualToAnalyzer' threw an exception of type 'System.NullReferenceException' with message 'Object reference not set to an instance of an object.'.
1>CSC : warning AD0001: Analyzer 'FluentAssertions.Analyzers.StringShouldNotBeNullOrEmptyAnalyzer' threw an exception of type 'System.NullReferenceException' with message 'Object reference not set to an instance of an object.'.
1>CSC : warning AD0001: Analyzer 'FluentAssertions.Analyzers.CollectionShouldNotBeEmptyAnalyzer' threw an exception of type 'System.NullReferenceException' with message 'Object reference not set to an instance of an object.'.
1>CSC : warning AD0001: Analyzer 'FluentAssertions.Analyzers.CollectionShouldEqualOtherCollectionByComparerAnalyzer' threw an exception of type 'System.NullReferenceException' with message 'Object reference not set to an instance of an object.'.
1>CSC : warning AD0001: Analyzer 'FluentAssertions.Analyzers.CollectionShouldNotHaveCountAnalyzer' threw an exception of type 'System.NullReferenceException' with message 'Object reference not set to an instance of an object.'.
1>CSC : warning AD0001: Analyzer 'FluentAssertions.Analyzers.CollectionShouldBeInAscendingOrderAnalyzer' threw an exception of type 'System.NullReferenceException' with message 'Object reference not set to an instance of an object.'.
1>CSC : warning AD0001: Analyzer 'FluentAssertions.Analyzers.CollectionShouldHaveCountGreaterThanAnalyzer' threw an exception of type 'System.NullReferenceException' with message 'Object reference not set to an instance of an object.'.
1>CSC : warning AD0001: Analyzer 'FluentAssertions.Analyzers.CollectionShouldNotContainItemAnalyzer' threw an exception of type 'System.NullReferenceException' with message 'Object reference not set to an instance of an object.'.
1>CSC : warning AD0001: Analyzer 'FluentAssertions.Analyzers.CollectionShouldContainPropertyAnalyzer' threw an exception of type 'System.NullReferenceException' with message 'Object reference not set to an instance of an object.'.
1>CSC : warning AD0001: Analyzer 'FluentAssertions.Analyzers.CollectionShouldBeInDescendingOrderAnalyzer' threw an exception of type 'System.NullReferenceException' with message 'Object reference not set to an instance of an object.'.
1>CSC : warning AD0001: Analyzer 'FluentAssertions.Analyzers.CollectionShouldHaveCountLessThanAnalyzer' threw an exception of type 'System.NullReferenceException' with message 'Object reference not set to an instance of an object.'.
1>CSC : warning AD0001: Analyzer 'FluentAssertions.Analyzers.CollectionShouldOnlyHaveUniqueItemsByComparerAnalyzer' threw an exception of type 'System.NullReferenceException' with message 'Object reference not set to an instance of an object.'.
1>CSC : warning AD0001: Analyzer 'FluentAssertions.Analyzers.CollectionShouldHaveCountAnalyzer' threw an exception of type 'System.NullReferenceException' with message 'Object reference not set to an instance of an object.'.
1>CSC : warning AD0001: Analyzer 'FluentAssertions.Analyzers.CollectionShouldOnlyContainPropertyAnalyzer' threw an exception of type 'System.NullReferenceException' with message 'Object reference not set to an instance of an object.'.
1>CSC : warning AD0001: Analyzer 'FluentAssertions.Analyzers.CollectionShouldOnlyHaveUniqueItemsAnalyzer' threw an exception of type 'System.NullReferenceException' with message 'Object reference not set to an instance of an object.'.
1>CSC : warning AD0001: Analyzer 'FluentAssertions.Analyzers.NumericShouldBeApproximatelyAnalyzer' threw an exception of type 'System.NullReferenceException' with message 'Object reference not set to an instance of an object.'.
1>CSC : warning AD0001: Analyzer 'FluentAssertions.Analyzers.CollectionShouldHaveSameCountAnalyzer' threw an exception of type 'System.NullReferenceException' with message 'Object reference not set to an instance of an object.'.
1>CSC : warning AD0001: Analyzer 'FluentAssertions.Analyzers.CollectionShouldNotIntersectWithAnalyzer' threw an exception of type 'System.NullReferenceException' with message 'Object reference not set to an instance of an object.'.
1>CSC : warning AD0001: Analyzer 'FluentAssertions.Analyzers.StringShouldBeNullOrWhiteSpaceAnalyzer' threw an exception of type 'System.NullReferenceException' with message 'Object reference not set to an instance of an object.'.
1>CSC : warning AD0001: Analyzer 'FluentAssertions.Analyzers.CollectionShouldNotContainPropertyAnalyzer' threw an exception of type 'System.NullReferenceException' with message 'Object reference not set to an instance of an object.'.
1>CSC : warning AD0001: Analyzer 'FluentAssertions.Analyzers.CollectionShouldContainSingleAnalyzer' threw an exception of type 'System.NullReferenceException' with message 'Object reference not set to an instance of an object.'.
1>CSC : warning AD0001: Analyzer 'FluentAssertions.Analyzers.StringShouldEndWithAnalyzer' threw an exception of type 'System.NullReferenceException' with message 'Object reference not set to an instance of an object.'.
1>CSC : warning AD0001: Analyzer 'FluentAssertions.Analyzers.CollectionShouldBeEmptyAnalyzer' threw an exception of type 'System.NullReferenceException' with message 'Object reference not set to an instance of an object.'.
1>CSC : warning AD0001: Analyzer 'FluentAssertions.Analyzers.StringShouldStartWithAnalyzer' threw an exception of type 'System.NullReferenceException' with message 'Object reference not set to an instance of an object.'.
1>CSC : warning AD0001: Analyzer 'FluentAssertions.Analyzers.StringShouldBeNullOrEmptyAnalyzer' threw an exception of type 'System.NullReferenceException' with message 'Object reference not set to an instance of an object.'.
1>CSC : warning AD0001: Analyzer 'FluentAssertions.Analyzers.CollectionShouldContainItemAnalyzer' threw an exception of type 'System.NullReferenceException' with message 'Object reference not set to an instance of an object.'.
1>CSC : warning AD0001: Analyzer 'FluentAssertions.Analyzers.CollectionShouldHaveElementAtAnalyzer' threw an exception of type 'System.NullReferenceException' with message 'Object reference not set to an instance of an object.'.
1>CSC : warning AD0001: Analyzer 'FluentAssertions.Analyzers.CollectionShouldIntersectWithAnalyzer' threw an exception of type 'System.NullReferenceException' with message 'Object reference not set to an instance of an object.'.
1>CSC : warning AD0001: Analyzer 'FluentAssertions.Analyzers.CollectionShouldNotBeNullOrEmptyAnalyzer' threw an exception of type 'System.NullReferenceException' with message 'Object reference not set to an instance of an object.'.
1>CSC : warning AD0001: Analyzer 'FluentAssertions.Analyzers.CollectionShouldNotContainNullsAnalyzer' threw an exception of type 'System.NullReferenceException' with message 'Object reference not set to an instance of an object.'.
1>CSC : warning AD0001: Analyzer 'FluentAssertions.Analyzers.CollectionShouldNotHaveSameCountAnalyzer' threw an exception of type 'System.NullReferenceException' with message 'Object reference not set to an instance of an object.'.
1>CSC : warning AD0001: Analyzer 'FluentAssertions.Analyzers.StringShouldHaveLengthAnalyzer' threw an exception of type 'System.NullReferenceException' with message 'Object reference not set to an instance of an object.'.
1>CSC : warning AD0001: Analyzer 'FluentAssertions.Analyzers.StringShouldNotBeNullOrWhiteSpaceAnalyzer' threw an exception of type 'System.NullReferenceException' with message 'Object reference not set to an instance of an object.'.

[memark]

Changing the function to a normal function with { ... } causes the warnings to go away!

[Meir017]

Release 0.10.1 coming up