Always deserialize scope infos for parsing

src/ast/context-slot-cache.cc

Index: src/ast/context-slot-cache.cc
diff --git a/src/ast/context-slot-cache.cc b/src/ast/context-slot-cache.cc
deleted file mode 100644
index 43bd6d6b19205b9be5f909275e06691f0558b299..0000000000000000000000000000000000000000
--- a/src/ast/context-slot-cache.cc
+++ /dev/null
@@ -1,91 +0,0 @@
-// Copyright 2016 the V8 project authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "src/ast/context-slot-cache.h"
-
-#include <stdlib.h>
-
-#include "src/ast/scopes.h"
-#include "src/bootstrapper.h"
-
-namespace v8 {
-namespace internal {
-
-int ContextSlotCache::Hash(Object* data, String* name) {
-  // Uses only lower 32 bits if pointers are larger.
-  uintptr_t addr_hash =
-      static_cast<uint32_t>(reinterpret_cast<uintptr_t>(data)) >> 2;
-  return static_cast<int>((addr_hash ^ name->Hash()) % kLength);
-}
-
-int ContextSlotCache::Lookup(Object* data, String* name, VariableMode* mode,
-                             InitializationFlag* init_flag,
-                             MaybeAssignedFlag* maybe_assigned_flag) {
-  int index = Hash(data, name);
-  Key& key = keys_[index];
-  if ((key.data == data) && key.name->Equals(name)) {
-    Value result(values_[index]);
-    if (mode != nullptr) *mode = result.mode();
-    if (init_flag != nullptr) *init_flag = result.initialization_flag();
-    if (maybe_assigned_flag != nullptr)
-      *maybe_assigned_flag = result.maybe_assigned_flag();
-    return result.index() + kNotFound;
-  }
-  return kNotFound;
-}
-
-void ContextSlotCache::Update(Handle<Object> data, Handle<String> name,
-                              VariableMode mode, InitializationFlag init_flag,
-                              MaybeAssignedFlag maybe_assigned_flag,
-                              int slot_index) {
-  DisallowHeapAllocation no_gc;
-  Handle<String> internalized_name;
-  DCHECK(slot_index > kNotFound);
-  if (StringTable::InternalizeStringIfExists(name->GetIsolate(), name)
-          .ToHandle(&internalized_name)) {
-    int index = Hash(*data, *internalized_name);
-    Key& key = keys_[index];
-    key.data = *data;
-    key.name = *internalized_name;
-    // Please note value only takes a uint as index.
-    values_[index] =
-        Value(mode, init_flag, maybe_assigned_flag, slot_index - kNotFound)
-            .raw();
-#ifdef DEBUG
-    ValidateEntry(data, name, mode, init_flag, maybe_assigned_flag, slot_index);
-#endif
-  }
-}
-
-void ContextSlotCache::Clear() {
-  for (int index = 0; index < kLength; index++) keys_[index].data = nullptr;
-}
-
-#ifdef DEBUG
-
-void ContextSlotCache::ValidateEntry(Handle<Object> data, Handle<String> name,
-                                     VariableMode mode,
-                                     InitializationFlag init_flag,
-                                     MaybeAssignedFlag maybe_assigned_flag,
-                                     int slot_index) {
-  DisallowHeapAllocation no_gc;
-  Handle<String> internalized_name;
-  if (StringTable::InternalizeStringIfExists(name->GetIsolate(), name)
-          .ToHandle(&internalized_name)) {
-    int index = Hash(*data, *name);
-    Key& key = keys_[index];
-    DCHECK(key.data == *data);
-    DCHECK(key.name->Equals(*name));
-    Value result(values_[index]);
-    DCHECK(result.mode() == mode);
-    DCHECK(result.initialization_flag() == init_flag);
-    DCHECK(result.maybe_assigned_flag() == maybe_assigned_flag);
-    DCHECK(result.index() + kNotFound == slot_index);
-  }
-}
-
-#endif  // DEBUG
-
-}  // namespace internal
-}  // namespace v8