Remove prototype checks for leaf maps in optimized code.

src/objects-debug.cc

Index: src/objects-debug.cc
diff --git a/src/objects-debug.cc b/src/objects-debug.cc
index 8c7a94478b4d895fb2b82fb56a56ec6bbd0dfe09..55dc5282015dc41d020b6d4d130fba2c36b2832e 100644
--- a/src/objects-debug.cc
+++ b/src/objects-debug.cc
@@ -604,7 +604,8 @@ void Code::VerifyEmbeddedMapsDependency() {
       it.rinfo()->target_object()->IsMap()) {
       Map* map = Map::cast(it.rinfo()->target_object());
       if (map->CanTransition()) {
-        CHECK(map->dependent_codes()->Contains(this));
+        CHECK(map->dependent_code()->Contains(
+            DependentCode::kWeaklyEmbeddedGroup, this));
       }
     }
   }