CSharpObjectFormatter throws NotSupportedException if it reaches ref struct property.

Version Used: Microsoft.CodeAnalysis.CSharp.Scripting 3.8.0 and 3.9.0-5.final (I tested both)

Steps to Reproduce:

ref struct X {};
class Y { public X x => default; };
CSharpObjectFormatter.Instance.FormatObject(new Y()); // dies

Expected Behavior:

CSharpObjectFormatter to ignore properties that are ref structs.

Actual Behavior:

CSharpObjectFormatter tries to fetch the value of the ref struct property with reflection, which throws because reflection does not support ref structs.