LibJS: Remove Object(Object& prototype) footgun

This constructor was easily confused with a copy constructor, and it was
possible to accidentally copy-construct Objects in at least one way that
we dicovered (via generic ThrowCompletionOr construction).

This patch adds a mandatory ConstructWithPrototypeTag parameter to the
constructor to disambiguate it.

Userland/Libraries/LibJS/Runtime/Intl/Segmenter.cpp

@@ -14,7 +14,7 @@ namespace JS::Intl {
 
 // 18 Segmenter Objects, https://tc39.es/ecma402/#segmenter-objects
 Segmenter::Segmenter(Object& prototype)
-    : Object(prototype)
+    : Object(ConstructWithPrototypeTag::Tag, prototype)
 {
 }