Suppressed false-positive compiler warning in "HashCode.Add"

Author: PawelGerr

src/Thinktecture.Runtime.Extensions.SourceGenerator/CodeAnalysis/ValueObjects/ValueObjectCodeGenerator.cs

@@ -1,4 +1,5 @@
 using System.Text;
+using Microsoft.CodeAnalysis;
 
 namespace Thinktecture.CodeAnalysis.ValueObjects;
 
@@ -783,8 +784,13 @@ public override int GetHashCode()
          hashCode.Add(this.").Append(member.Name);
 
                if (equalityComparerAccessor is not null)
+               {
                   _sb.Append(", ").Append(equalityComparerAccessor).Append(".EqualityComparer");
 
+                  if (member is { IsReferenceType: true, NullableAnnotation: NullableAnnotation.Annotated })
+                     _sb.Append("!");
+               }
+
                _sb.Append(");");
             }
          }