LookupServer: Implement DNSName::operator==()

Userland/Services/LookupServer/DNSName.cpp

@@ -74,6 +74,11 @@ void DNSName::randomize_case()
     m_name = builder.to_string();
 }
 
+bool DNSName::operator==(const DNSName& other) const
+{
+    return as_string() == other.as_string();
+}
+
 OutputStream& operator<<(OutputStream& stream, const DNSName& name)
 {
     auto parts = name.as_string().split_view('.');

Userland/Services/LookupServer/DNSName.h

@@ -23,6 +23,8 @@ public:
 
     void randomize_case();
 
+    bool operator==(const DNSName&) const;
+
     class Traits : public AK::Traits<DNSName> {
     public:
         static unsigned hash(const DNSName& name);