[parser] Skipping inner funcs: add info about variables.

src/parsing/preparsed-scope-data.cc

 // Copyright 2017 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/parsing/preparsed-scope-data.h"
 
 namespace v8 {
 namespace internal {
 
 PreParsedScopeData::ScopeScope::ScopeScope(PreParsedScopeData* data,
@@ skipping 17 matching lines @@
   data->backing_store_.push_back(-1);
   data->backing_store_.push_back(-1);
 }
 
 PreParsedScopeData::ScopeScope::~ScopeScope() {
   data_->current_scope_ = previous_scope_;
   data_->backing_store_[index_in_data_] = inner_scope_count_;
   data_->backing_store_[index_in_data_ + 1] = variable_count_;
 }
 
+void PreParsedScopeData::ScopeScope::AddVariable(VariableLocation location,
+                                                 bool maybe_assigned) {
+  data_->backing_store_.push_back(location);
+  data_->backing_store_.push_back(maybe_assigned);
+  ++variable_count_;
+}
+
 }  // namespace internal
 }  // namespace v8