GetHashCode for FunctionPointerTypeSignature is not implemented

[BadRyuner]

AsmResolver Version

5.5.1

.NET Version

Any

Operating System

Windows

Describe the Bug

Hashset is not friendly with FunctionPointerTypeSignature
Target site

How To Reproduce

var somemodule = new ModuleDefinition("heh");
var ty = somemodule.CorLibTypeFactory;
HashSet<TypeSignature> hashset = new HashSet<TypeSignature>(SignatureComparer.Default);
var somefnsig = new FunctionPointerTypeSignature(MethodSignature.CreateStatic(ty.Int64));
hashset.Add(somefnsig); // <--- System.NotSupportedException: "Specified method is not supported."

Expected Behavior

Not to see NotSupportedException.

Actual Behavior

We see NotSupportedException.

Additional Context

No response

[Washi1337]

Should be fixed on latest commit on the development branch. Thanks for the catch!