Stack allocating block scoped variables.

src/scopeinfo.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 68 matching lines @@
   // Encode the flags.
   int flags = TypeField::encode(scope->type()) |
       CallsEvalField::encode(scope->calls_eval()) |
       LanguageModeField::encode(scope->language_mode()) |
       FunctionVariableField::encode(function_name_info) |
       FunctionVariableMode::encode(function_variable_mode);
   scope_info->SetFlags(flags);
   scope_info->SetParameterCount(parameter_count);
   scope_info->SetStackLocalCount(stack_local_count);
   scope_info->SetContextLocalCount(context_local_count);
+  scope_info->SetStackSlotsDepth(scope->stack_slots_depth());
 
   int index = kVariablePartIndex;
   // Add parameters.
   ASSERT(index == scope_info->ParameterEntriesIndex());
   for (int i = 0; i < parameter_count; ++i) {
     scope_info->set(index++, *scope->parameter(i)->name());
   }
 
   // Add stack locals' names. We are assuming that the stack locals'
   // slots are allocated in increasing order, so we can simply add
@@ skipping 400 matching lines @@
             Context::MIN_CONTEXT_SLOTS,
             ContextLocalNameEntriesIndex(),
             ContextLocalNameEntriesIndex() + ContextLocalCount(),
             this);
 
   PrintF("}\n");
 }
 #endif  // DEBUG
 
 } }  // namespace v8::internal