Rip out most of our outdated modules implementation.

src/ast/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/ast/scopes.h"
 
 #include "src/accessors.h"
 #include "src/ast/scopeinfo.h"
 #include "src/bootstrapper.h"
 #include "src/messages.h"
@@ skipping 209 matching lines @@
       current_scope = with_scope;
       // All the inner scopes are inside a with.
       for (Scope* s = innermost_scope; s != NULL; s = s->outer_scope()) {
         s->scope_inside_with_ = true;
       }
     } else if (context->IsScriptContext()) {
       ScopeInfo* scope_info = context->scope_info();
       current_scope = new (zone) Scope(zone, current_scope, SCRIPT_SCOPE,
                                        Handle<ScopeInfo>(scope_info),
                                        script_scope->ast_value_factory_);
-    } else if (context->IsModuleContext()) {

[adamk, 2016/06/21 17:04:07]

Is this really dead yet? It appears that ModuleContexts are still a thing, they
just contain less stuff. Did you want to remove more from contexts.h?

-      ScopeInfo* scope_info = context->module()->scope_info();
-      current_scope = new (zone) Scope(zone, current_scope, MODULE_SCOPE,
-                                       Handle<ScopeInfo>(scope_info),
-                                       script_scope->ast_value_factory_);
     } else if (context->IsFunctionContext()) {
       ScopeInfo* scope_info = context->closure()->shared()->scope_info();
       current_scope = new (zone) Scope(zone, current_scope, FUNCTION_SCOPE,
                                        Handle<ScopeInfo>(scope_info),
                                        script_scope->ast_value_factory_);
       if (scope_info->IsAsmFunction()) current_scope->asm_function_ = true;
       if (scope_info->IsAsmModule()) current_scope->asm_module_ = true;
     } else if (context->IsBlockContext()) {
       ScopeInfo* scope_info = context->scope_info();
       current_scope = new (zone)
@@ skipping 1284 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