Function name variable does not need a VariableDeclaration

src/ast/scopeinfo.cc

 // Copyright 2011 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/scopeinfo.h"
 
 #include <stdlib.h>
 
 #include "src/ast/context-slot-cache.h"
 #include "src/ast/scopes.h"
@@ skipping 37 matching lines @@
   }
 
   bool has_new_target =
       scope->is_declaration_scope() &&
       scope->AsDeclarationScope()->new_target_var() != nullptr;
 
   // Determine use and location of the function variable if it is present.
   VariableAllocationInfo function_name_info;
   VariableMode function_variable_mode;
   if (scope->is_function_scope() &&
-      scope->AsDeclarationScope()->function() != nullptr) {
-    Variable* var = scope->AsDeclarationScope()->function()->proxy()->var();
+      scope->AsDeclarationScope()->function_var() != nullptr) {
+    Variable* var = scope->AsDeclarationScope()->function_var();
     if (!var->is_used()) {
       function_name_info = UNUSED;
     } else if (var->IsContextSlot()) {
       function_name_info = CONTEXT;
     } else {
       DCHECK(var->IsStackLocal());
       function_name_info = STACK;
     }
     function_variable_mode = var->mode();
   } else {
@@ skipping 115 matching lines @@
   if (has_receiver) {
     int var_index = scope->AsDeclarationScope()->receiver()->index();
     scope_info->set(index++, Smi::FromInt(var_index));
     // ?? DCHECK(receiver_info != CONTEXT || var_index ==
     // scope_info->ContextLength() - 1);
   }
 
   // If present, add the function variable name and its index.
   DCHECK(index == scope_info->FunctionNameEntryIndex());
   if (has_function_name) {
-    int var_index =
-        scope->AsDeclarationScope()->function()->proxy()->var()->index();
+    int var_index = scope->AsDeclarationScope()->function_var()->index();
     scope_info->set(index++,
-                    *scope->AsDeclarationScope()->function()->proxy()->name());
+                    *scope->AsDeclarationScope()->function_var()->name());
     scope_info->set(index++, Smi::FromInt(var_index));
     DCHECK(function_name_info != CONTEXT ||
            var_index == scope_info->ContextLength() - 1);
   }
 
   DCHECK(index == scope_info->length());
   DCHECK(scope->num_parameters() == scope_info->ParameterCount());
   DCHECK(scope->num_heap_slots() == scope_info->ContextLength() ||
          (scope->num_heap_slots() == kVariablePartIndex &&
           scope_info->ContextLength() == 0));
@@ skipping 483 matching lines @@
               ContextLocalNameEntriesIndex() + ContextLocalCount(), this);
   }
 
   PrintF("}\n");
 }
 #endif  // DEBUG
 
 
 }  // namespace internal
 }  // namespace v8