Devtools: expose scopes source location to debugger

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 800 matching lines @@
 
 
 Handle<ScopeInfo> Scope::GetScopeInfo(Isolate* isolate) {
   if (scope_info_.is_null()) {
     scope_info_ = ScopeInfo::Create(isolate, zone(), this);
   }
   return scope_info_;
 }
 
 
-void Scope::GetNestedScopeChain(Isolate* isolate,
-                                List<Handle<ScopeInfo> >* chain, int position) {
-  if (!is_eval_scope()) chain->Add(Handle<ScopeInfo>(GetScopeInfo(isolate)));
-
-  for (int i = 0; i < inner_scopes_.length(); i++) {
-    Scope* scope = inner_scopes_[i];
-    int beg_pos = scope->start_position();
-    int end_pos = scope->end_position();
-    DCHECK(beg_pos >= 0 && end_pos >= 0);
-    if (beg_pos <= position && position < end_pos) {
-      scope->GetNestedScopeChain(isolate, chain, position);
-      return;
-    }
-  }
-}
-
-
 void Scope::CollectNonLocals(HashMap* non_locals) {
   // Collect non-local variables referenced in the scope.
   // TODO(yangguo): store non-local variables explicitly if we can no longer
   //                rely on unresolved_ to find them.
   for (int i = 0; i < unresolved_.length(); i++) {
     VariableProxy* proxy = unresolved_[i];
     if (proxy->is_resolved() && proxy->var()->IsStackAllocated()) continue;
     Handle<String> name = proxy->name();
     void* key = reinterpret_cast<void*>(name.location());
     HashMap::Entry* entry = non_locals->LookupOrInsert(key, name->Hash());
@@ skipping 699 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