[es6] Introduce spec compliant IsConstructor.

src/scopes.cc

 // Copyright 2012 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/scopes.h"
 
 #include "src/accessors.h"
 #include "src/bootstrapper.h"
 #include "src/messages.h"
 #include "src/parser.h"
@@ skipping 339 matching lines @@
     // Note that it might never be accessed, in which case it won't be
     // allocated during variable allocation.
     variables_.Declare(this, ast_value_factory_->arguments_string(), VAR,
                        Variable::ARGUMENTS, kCreatedInitialized);
 
     if (subclass_constructor || FLAG_harmony_new_target) {
       variables_.Declare(this, ast_value_factory_->new_target_string(), CONST,
                          Variable::NORMAL, kCreatedInitialized);
     }
 
-    if (IsConciseMethod(function_kind_) || IsConstructor(function_kind_) ||
+    if (IsConciseMethod(function_kind_) || IsClassConstructor(function_kind_) ||
         IsAccessorFunction(function_kind_)) {
       variables_.Declare(this, ast_value_factory_->this_function_string(),
                          CONST, Variable::NORMAL, kCreatedInitialized);
     }
   }
 }
 
 
 Scope* Scope::FinalizeBlockScope() {
   DCHECK(is_block_scope());
@@ skipping 907 matching lines @@
 }
 
 
 ClassVariable* Scope::ClassVariableForMethod() const {
   // TODO(marja, rossberg): This fails to find a class variable in the following
   // cases:
   // let A = class { ... }
   // It needs to be investigated whether this causes any practical problems.
   if (!is_function_scope()) return nullptr;
   if (IsInObjectLiteral(function_kind_)) return nullptr;
-  if (!IsConciseMethod(function_kind_) && !IsConstructor(function_kind_) &&
+  if (!IsConciseMethod(function_kind_) && !IsClassConstructor(function_kind_) &&
       !IsAccessorFunction(function_kind_)) {
     return nullptr;
   }
   DCHECK_NOT_NULL(outer_scope_);
   // The class scope contains at most one variable, the class name.
   DCHECK(outer_scope_->variables_.occupancy() <= 1);
   if (outer_scope_->variables_.occupancy() == 0) return nullptr;
   VariableMap::Entry* p = outer_scope_->variables_.Start();
   Variable* var = reinterpret_cast<Variable*>(p->value);
   if (!var->is_class()) return nullptr;
@@ skipping 350 matching lines @@
       function_ != NULL && function_->proxy()->var()->IsContextSlot();
   return num_heap_slots() - Context::MIN_CONTEXT_SLOTS - num_global_slots() -
          (is_function_var_in_context ? 1 : 0);
 }
 
 
 int Scope::ContextGlobalCount() const { return num_global_slots(); }
 
 }  // namespace internal
 }  // namespace v8