[modules] Partial scope info support of modules

src/ast/ast-numbering.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/ast-numbering.h"
 
 #include "src/ast/ast.h"
 #include "src/ast/scopes.h"
 
 namespace v8 {
@@ skipping 561 matching lines @@
   if (scope->new_target_var()) DisableCrankshaft(kSuperReference);
   if (scope->calls_eval()) DisableOptimization(kFunctionCallsEval);
   if (scope->arguments() != NULL && !scope->arguments()->IsStackAllocated()) {
     DisableCrankshaft(kContextAllocatedArguments);
   }
 
   if (scope->rest_parameter() != nullptr) {
     DisableCrankshaft(kRestParameter);
   }
 
-  if (FLAG_ignition && scope->NeedsContext() && scope->is_script_scope()) {
+  if (FLAG_ignition && scope->NeedsContext() &&
+      (scope->is_script_scope() || scope->is_module_scope())) {
     // Create ScopeInfo while on the main thread to avoid allocation during
     // potentially concurrent bytecode generation.
     node->scope()->GetScopeInfo(isolate_);
   }
 
   if (IsGeneratorFunction(node->kind()) || IsAsyncFunction(node->kind())) {
     // TODO(neis): We may want to allow Turbofan optimization here if
     // --turbo-from-bytecode is set and we know that Ignition is used.
     // Unfortunately we can't express that here.
     DisableOptimization(kGenerator);
   }
 
   VisitDeclarations(scope->declarations());
   VisitStatements(node->body());
 
   node->set_ast_properties(&properties_);
   node->set_dont_optimize_reason(dont_optimize_reason());
   node->set_yield_count(yield_count_);
   return !HasStackOverflow();
 }
 
 
 bool AstNumbering::Renumber(Isolate* isolate, Zone* zone,
                             FunctionLiteral* function) {
   AstNumberingVisitor visitor(isolate, zone);
   return visitor.Renumber(function);
 }
 }  // namespace internal
 }  // namespace v8