Implement implicitly inherited

Author: AJenbo

example.php

@@ -88,6 +88,12 @@ enum Priority: int
     case High = 3;
 }
 
+enum Mode
+{
+    case Automatic;
+    case Manual;
+}
+
 // ─── Base / Parent Class ────────────────────────────────────────────────────
 
 /**

src/parser.rs

@@ -7,6 +7,7 @@
 use std::collections::HashMap;
 
 use bumpalo::Bump;
+use mago_span::HasSpan;
 use mago_syntax::ast::*;
 use mago_syntax::parser::parse_file_content;
 
@@ -683,9 +684,28 @@ impl Backend {
                 Statement::Enum(enum_def) => {
                     let enum_name = enum_def.name.value.to_string();
 
-                    let (mut methods, mut properties, constants, used_traits) =
+                    let (mut methods, mut properties, constants, mut used_traits) =
                         Self::extract_class_like_members(enum_def.members.iter(), doc_ctx);
 
+                    // Determine if the enum is a BackedEnum or UnitEnum
+                    let implicit_interface = if let Some(backing) = &enum_def.backing_type_hint {
+                        if let Some(ctx) = doc_ctx {
+                            let range = backing.hint.span().to_range_usize();
+                            let backing_str = &ctx.content[range];
+                            match backing_str {
+                                "int" | "string" => "BackedEnum",
+                                _ => "UnitEnum",
+                            }
+                        } else {
+                            "UnitEnum"
+                        }
+                    } else {
+                        "UnitEnum"
+                    };
+
+                    // Add the implicit interface to used_traits
+                    used_traits.push(implicit_interface.to_string());
+
                     // Extract @property, @method, and @mixin tags from the enum-level docblock.
                     let mut mixins = Vec::new();
                     if let Some(ctx) = doc_ctx