[full-codegen] Remove superfluous NestedStatement use in VisitDoExpression

src/full-codegen/full-codegen.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/full-codegen/full-codegen.h"
 
 #include "src/ast/ast-numbering.h"
 #include "src/ast/ast.h"
 #include "src/ast/prettyprinter.h"
 #include "src/ast/scopeinfo.h"
@@ skipping 837 matching lines @@
     EnterBlockScopeIfNeeded block_scope_state(
         this, stmt->scope(), stmt->EntryId(), stmt->DeclsId(), stmt->ExitId());
     VisitStatements(stmt->statements());
     __ bind(nested_block.break_label());
   }
 }
 
 
 void FullCodeGenerator::VisitDoExpression(DoExpression* expr) {
   Comment cmnt(masm_, "[ Do Expression");
-  NestedStatement nested_block(this);
   SetExpressionPosition(expr);
   VisitBlock(expr->block());
   EmitVariableLoad(expr->result());
 }
 
 
 void FullCodeGenerator::VisitExpressionStatement(ExpressionStatement* stmt) {
   Comment cmnt(masm_, "[ ExpressionStatement");
   SetStatementPosition(stmt);
   VisitForEffect(stmt->expression());
@@ skipping 1074 matching lines @@
   return var->scope()->is_nonlinear() ||
          var->initializer_position() >= proxy->position();
 }
 
 
 #undef __
 
 
 }  // namespace internal
 }  // namespace v8