LibJS: Convert to_property_descriptor() to ThrowCompletionOr

Also add spec step comments to it while we're here.

1 files changed, 1 insertions, 3 deletions

diff --git a/Userland/Libraries/LibJS/Runtime/ReflectObject.cpp b/Userland/Libraries/LibJS/Runtime/ReflectObject.cpp
index 8014263fb9..6013a6ecbd 100644
--- a/Userland/Libraries/LibJS/Runtime/ReflectObject.cpp
+++ b/Userland/Libraries/LibJS/Runtime/ReflectObject.cpp
@@ -117,9 +117,7 @@ JS_DEFINE_NATIVE_FUNCTION(ReflectObject::define_property)
         return {};
 
     // 3. Let desc be ? ToPropertyDescriptor(attributes).
-    auto descriptor = to_property_descriptor(global_object, attributes);
-    if (vm.exception())
-        return {};
+    auto descriptor = TRY_OR_DISCARD(to_property_descriptor(global_object, attributes));
 
     // 4. Return ? target.[[DefineOwnProperty]](key, desc).
     return Value(TRY_OR_DISCARD(target.as_object().internal_define_own_property(key, descriptor)));