LibJS: Set class' source text in NewClass instruction

This fixes the classes toString method.

1 files changed, 4 insertions, 1 deletions

diff --git a/Userland/Libraries/LibJS/Bytecode/Op.cpp b/Userland/Libraries/LibJS/Bytecode/Op.cpp
index 07a029ba8a..58be7e29d6 100644
--- a/Userland/Libraries/LibJS/Bytecode/Op.cpp
+++ b/Userland/Libraries/LibJS/Bytecode/Op.cpp
@@ -944,7 +944,10 @@ ThrowCompletionOr<void> NewClass::execute_impl(Bytecode::Interpreter& interprete
     auto name = m_class_expression.name();
     auto scope = interpreter.ast_interpreter_scope();
     auto& ast_interpreter = scope.interpreter();
-    auto class_object = TRY(m_class_expression.class_definition_evaluation(ast_interpreter, name, name.is_null() ? ""sv : name));
+
+    auto* class_object = TRY(m_class_expression.class_definition_evaluation(ast_interpreter, name, name.is_null() ? ""sv : name));
+    class_object->set_source_text(m_class_expression.source_text());
+
     interpreter.accumulator() = class_object;
     return {};
 }