Revert of [tests] Make assertOptimized()/assertUnoptimized() great again.

test/mjsunit/shared-function-tier-up-turbo.js

Index: test/mjsunit/shared-function-tier-up-turbo.js
diff --git a/test/mjsunit/shared-function-tier-up-turbo.js b/test/mjsunit/shared-function-tier-up-turbo.js
index 42805a1232532335ba74888cbfe170764e585d19..aed30e8150d5386bd4df6cafbcc00cc011c9557b 100644
--- a/test/mjsunit/shared-function-tier-up-turbo.js
+++ b/test/mjsunit/shared-function-tier-up-turbo.js
@@ -13,20 +13,20 @@
     }
     sum += f(i);
 
-    if (isAlwaysOptimize() || isNeverOptimize()) {
+    if (%GetOptimizationStatus(f) == 3 || %GetOptimizationStatus(f) == 4) {
       // If we are always or never optimizing f, just exit, this test is useless.
       return;
     }
 
     if (i == 1) {
       // f must be interpreted code.
-      assertTrue(isInterpreted(f));
+      assertEquals(8, %GetOptimizationStatus(f));
 
       // Run twice (i = 0, 1), then tier-up.
       %OptimizeFunctionOnNextCall(f);
     } else if (i == 2) {
       // Tier-up at i = 2 should go up to turbofan.
-      assertTrue(isTurboFanned(f));
+      assertEquals(7, %GetOptimizationStatus(f));
     }
   }
 })()