Fix crash when two types with the same name are registered in a Schema

Same name yes, but not the same fully qualified name (including the module name and potential nesting)

Author: abidon

Sources/Graphiti/Definition/AnyType.swift

@@ -10,6 +10,6 @@ final class AnyType: Hashable {
     }
 
     static func == (lhs: AnyType, rhs: AnyType) -> Bool {
-        return lhs.hashValue == rhs.hashValue
+        return lhs.type == rhs.type
     }
 }