Remove --harmony-scoping flag.

src/hydrogen.cc

 // Copyright 2013 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/hydrogen.h"
 
 #include <sstream>
 
 #include "src/v8.h"
 
@@ skipping 5300 matching lines @@
       // load from a global cell for them.
       Handle<Object> constant_value =
           isolate()->factory()->GlobalConstantFor(variable->name());
       if (!constant_value.is_null()) {
         HConstant* instr = New<HConstant>(constant_value);
         return ast_context()->ReturnInstruction(instr, expr->id());
       }
 
       Handle<GlobalObject> global(current_info()->global_object());
 
-      if (FLAG_harmony_scoping) {
+      // Lookup in script contexts.
+      {
         Handle<ScriptContextTable> script_contexts(
             global->native_context()->script_context_table());
         ScriptContextTable::LookupResult lookup;
         if (ScriptContextTable::Lookup(script_contexts, variable->name(),
                                        &lookup)) {
           Handle<Context> script_context = ScriptContextTable::GetContext(
               script_contexts, lookup.context_index);
           Handle<Object> current_value =
               FixedArray::get(script_context, lookup.context_index);
 
@@ skipping 1139 matching lines @@
 
 // Because not every expression has a position and there is not common
 // superclass of Assignment and CountOperation, we cannot just pass the
 // owning expression instead of position and ast_id separately.
 void HOptimizedGraphBuilder::HandleGlobalVariableAssignment(
     Variable* var,
     HValue* value,
     BailoutId ast_id) {
   Handle<GlobalObject> global(current_info()->global_object());
 
-  if (FLAG_harmony_scoping) {
+  // Lookup in script contexts.
+  {
     Handle<ScriptContextTable> script_contexts(
         global->native_context()->script_context_table());
     ScriptContextTable::LookupResult lookup;
     if (ScriptContextTable::Lookup(script_contexts, var->name(), &lookup)) {
       if (lookup.mode == CONST) {
         return Bailout(kNonInitializerAssignmentToConst);
       }
       Handle<Context> script_context =
           ScriptContextTable::GetContext(script_contexts, lookup.context_index);
       HStoreNamedField* instr = Add<HStoreNamedField>(
@@ skipping 6886 matching lines @@
   if (ShouldProduceTraceOutput()) {
     isolate()->GetHTracer()->TraceHydrogen(name(), graph_);
   }
 
 #ifdef DEBUG
   graph_->Verify(false);  // No full verify.
 #endif
 }
 
 } }  // namespace v8::internal