LookupServer: Make DNSName::operator== ignore case

Author: https://github.com/MaxWipfli
Commit: https://github.com/SerenityOS/serenity/commit/12feb79cef6
Pull-request: https://github.com/SerenityOS/serenity/pull/7875
Reviewed-by: https://github.com/FireFox317
Reviewed-by: https://github.com/gunnarbeutner

Userland/Services/LookupServer/DNSName.cpp

@@ -75,11 +75,6 @@ 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

@@ -23,7 +23,7 @@ public:
 
     void randomize_case();
 
-    bool operator==(const DNSName&) const;
+    bool operator==(const DNSName& other) const { return Traits::equals(*this, other); }
 
     class Traits : public AK::Traits<DNSName> {
     public: