LibWeb: Make TemporaryExecutionContext [[nodiscard]]

Author: https://github.com/tcl3
Commit: 84b69c2387
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/3211
Reviewed-by: https://github.com/AtkinsSJ ✅

Libraries/LibWeb/HTML/Scripting/TemporaryExecutionContext.h

@@ -14,7 +14,7 @@ namespace Web::HTML {
 // When JS is run from outside the context of any user script, we currently do not have a running execution context.
 // This results in a crash when we access VM::running_execution_context(). This is a spec issue. Until it is resolved,
 // this is a workaround to temporarily push an execution context.
-class TemporaryExecutionContext {
+class [[nodiscard]] TemporaryExecutionContext {
 public:
     enum class CallbacksEnabled {
         No,