BindingsGenerator+LibIDL: Parse "inherit" attributes

An "inherit attribute" calls an ancestor's getter with the same name,
but defines its own setter. Since a parent class's public methods are
exposed to child classes, we don't have to do any special handling here
to call the parent's methods, it just works. :^)

Meta/Lagom/Tools/CodeGenerators/LibWeb/BindingsGenerator/main.cpp

@@ -111,7 +111,8 @@ int main(int argc, char** argv)
     if constexpr (BINDINGS_GENERATOR_DEBUG) {
         dbgln("Attributes:");
         for (auto& attribute : interface.attributes) {
-            dbgln("  {}{}{} {}",
+            dbgln("  {}{}{}{} {}",
+                attribute.inherit ? "inherit " : "",
                 attribute.readonly ? "readonly " : "",
                 attribute.type->name(),
                 attribute.type->is_nullable() ? "?" : "",