Bug 1393270: Follow-up: Fix debug test bustage. r=bustage CLOSED TREE

MozReview-Commit-ID: 1R4BDt1lDNz

--HG--
extra : rebase_source : c59bdb6ecdf2e62e78fd9434b5ff4e864b671b0d
extra : amend_source : 44717b391ac819132080131dc783002ca6fda18b

js/src/jsapi-tests/testCompileNonSyntactic.cpp

@@ -13,7 +13,7 @@ using js::AutoLockMonitor;
 
 struct OffThreadTask {
     OffThreadTask()
-      : monitor(js::mutexid::TestMutex),
+      : monitor(js::mutexid::ShellOffThreadState),
         token(nullptr)
     {}