[sparkplug] Use NeverOptimize in tests

This prevents conflicts with e.g. --always-opt

Fixed: v8:11462
Change-Id: Ib98378a1bf620f5706bf3eef06f997bd994b1e2c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2700035
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72815}

test/mjsunit/baseline/cross-realm.js

@@ -19,6 +19,8 @@
 
   let f1 = Realm.eval(realm1, "(" + factory1.toString() + ")")();
   let f2 = Realm.eval(realm2, "(" + factory1.toString() + ")")();
+  %NeverOptimizeFunction(f1);
+  %NeverOptimizeFunction(f2);
 
   %CompileBaseline(f1);
   assertEquals(0, f1(0));
@@ -46,6 +48,9 @@
   let realmFactory = Realm.eval(realm2, "(" + factory2.toString() + ")");
   let f2 = realmFactory();
   let f3 = realmFactory();
+  %NeverOptimizeFunction(f1);
+  %NeverOptimizeFunction(f2);
+  %NeverOptimizeFunction(f3);
 
   assertEquals(0, f2(0));
   %CompileBaseline(f1);

test/mjsunit/baseline/test-baseline.js

@@ -294,6 +294,9 @@ assertEquals(run((x)=>{
   }
   let f1 = factory();
   let f2 = factory();
+  %NeverOptimizeFunction(f1);
+  %NeverOptimizeFunction(f2);
+
   assertEquals(f1(0), 0);
   assertEquals(f2(0), 0);
   assertTrue(isInterpreted(f1))