Allow Script::FindSharedFunctionInfo to return toplevel functions

src/objects.cc

Index: src/objects.cc
diff --git a/src/objects.cc b/src/objects.cc
index 00bd2c18bc6035777310a8252fa8b3f0e7ac178e..06cea50978d92ceaeb661e2e6ee7b316f93244d3 100644
--- a/src/objects.cc
+++ b/src/objects.cc
@@ -12373,9 +12373,6 @@ MaybeHandle<SharedFunctionInfo> Script::FindSharedFunctionInfo(
     if (fun->function_token_position() == shared->function_token_position() &&
         fun->start_position() == shared->start_position() &&
         fun->end_position() == shared->end_position()) {
-      // This method is not used to find top-level SharedFunctionInfo objects,
-      // verify that above checks are sufficient to distinguish top-level code.
-      DCHECK(!shared->is_toplevel());
       return Handle<SharedFunctionInfo>(shared);
     }
   }