LibJS: Convert delete_binding() to ThrowCompletionOr

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

1 files changed, 1 insertions, 1 deletions

diff --git a/Userland/Libraries/LibJS/Runtime/Environment.h b/Userland/Libraries/LibJS/Runtime/Environment.h
index b4fdd07f18..ec94a3b1e3 100644
--- a/Userland/Libraries/LibJS/Runtime/Environment.h
+++ b/Userland/Libraries/LibJS/Runtime/Environment.h
@@ -39,7 +39,7 @@ public:
     virtual ThrowCompletionOr<void> initialize_binding(GlobalObject&, [[maybe_unused]] FlyString const& name, Value) { return {}; }
     virtual ThrowCompletionOr<void> set_mutable_binding(GlobalObject&, [[maybe_unused]] FlyString const& name, Value, [[maybe_unused]] bool strict) { return {}; }
     virtual ThrowCompletionOr<Value> get_binding_value(GlobalObject&, [[maybe_unused]] FlyString const& name, [[maybe_unused]] bool strict) { return Value {}; }
-    virtual bool delete_binding(GlobalObject&, [[maybe_unused]] FlyString const& name) { return false; }
+    virtual ThrowCompletionOr<bool> delete_binding(GlobalObject&, [[maybe_unused]] FlyString const& name) { return false; }
 
     // [[OuterEnv]]
     Environment* outer_environment() { return m_outer_environment; }