[inspector] exposed builtins for injected script source

src/debug/debug-interface.h

Index: src/debug/debug-interface.h
diff --git a/src/debug/debug-interface.h b/src/debug/debug-interface.h
index 61a600922dd15b1bb054893ef666682e0533222e..443e07497db2d16a0bec9a114ad8d80aa106be6c 100644
--- a/src/debug/debug-interface.h
+++ b/src/debug/debug-interface.h
@@ -197,6 +197,16 @@ v8::MaybeLocal<v8::Array> EntriesPreview(Isolate* isolate,
                                          v8::Local<v8::Value> value,
                                          bool* is_key_value);
 
+enum Builtin {
+  kObjectKeys,
+  kObjectGetPrototypeOf,
+  kObjectGetOwnPropertyDescriptor,
+  kObjectGetOwnPropertyNames,
+  kObjectGetOwnPropertySymbols,
+};
+
+Local<Function> GetBuiltin(Isolate* isolate, Builtin builtin);
+
 /**
  * Native wrapper around v8::internal::JSGeneratorObject object.
  */