Bug 1593329 - Make oomTest delazify its thunk first so that allocations doing that don't mask those in the thunk itself r=sfink

Differential Revision: https://phabricator.services.mozilla.com/D52026

--HG--
extra : moz-landing-system : lando

js/src/builtin/TestingFunctions.cpp

@@ -2166,6 +2166,12 @@ bool RunIterativeFailureTest(JSContext* cx,
   JS_SetGCZeal(cx, 0, JS_DEFAULT_ZEAL_FREQ);
 #  endif
 
+  // Delazify the function here if necessary so we don't end up testing that.
+  if (params.testFunction->isInterpreted() &&
+      !JSFunction::getOrCreateScript(cx, params.testFunction)) {
+    return false;
+  }
+
   size_t compartmentCount = CountCompartments(cx);
 
   RootedValue exception(cx);

js/src/jit-test/tests/debug/job-queue-04.js

@@ -21,4 +21,4 @@ dbg.onNewScript = script => {};
 // the correct condition).
 oomTest(() => {
     g.eval("(function() {})");
-});
+}, {expectExceptionOnFailure: false});