Reland of "Store SharedFunctionInfos of a Script in a FixedArray indexed by their ID"

src/heap/heap.cc

Index: src/heap/heap.cc
diff --git a/src/heap/heap.cc b/src/heap/heap.cc
index c886bbff7c4c02c3c5fe24d5fdf1c524d4afb0e4..e95dd2965ba708eabe6c6fbd18b0a13d6c0adce2 100644
--- a/src/heap/heap.cc
+++ b/src/heap/heap.cc
@@ -5800,8 +5800,6 @@ void Heap::CompactWeakFixedArrays() {
         WeakFixedArray* array = WeakFixedArray::cast(prototype_users);
         array->Compact<JSObject::PrototypeRegistryCompactionCallback>();
       }
-    } else if (o->IsScript()) {
-      CompactWeakFixedArray(Script::cast(o)->shared_function_infos());
     }
   }
   CompactWeakFixedArray(noscript_shared_function_infos());