[turbofan] refactor pipeline to use hydrogen like Run calls

test/cctest/compiler/test-codegen-deopt.cc

 // Copyright 2014 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/v8.h"
 #include "test/cctest/cctest.h"
 
 #include "src/compiler/code-generator.h"
 #include "src/compiler/common-operator.h"
 #include "src/compiler/graph.h"
@@ skipping 38 matching lines @@
     CHECK(Parser::Parse(&info));
     info.SetOptimizing(BailoutId::None(), Handle<Code>(function->code()));
     CHECK(Compiler::Analyze(&info));
     CHECK(Compiler::EnsureDeoptimizationSupport(&info));
 
     DCHECK(info.shared_info()->has_deoptimization_support());
 
     graph = new (scope_->main_zone()) Graph(scope_->main_zone());
   }
 
-  virtual ~DeoptCodegenTester() { delete code; }
+  virtual ~DeoptCodegenTester() {}
 
   void GenerateCodeFromSchedule(Schedule* schedule) {
     OFStream os(stdout);
     if (FLAG_trace_turbo) {
       os << *schedule;
     }
 
     // Initialize the codegen and generate code.
     Linkage* linkage = new (scope_->main_zone()) Linkage(info.zone(), &info);
     InstructionBlocks* instruction_blocks =
         TestInstrSeq::InstructionBlocksFor(scope_->main_zone(), schedule);
-    code = new TestInstrSeq(scope_->main_zone(), instruction_blocks);
+    code = new (scope_->main_zone())
+        TestInstrSeq(scope_->main_zone(), instruction_blocks);
     SourcePositionTable source_positions(graph);
     InstructionSelector selector(scope_->main_zone(), graph, linkage, code,
                                  schedule, &source_positions);
     selector.SelectInstructions();
 
     if (FLAG_trace_turbo) {
       PrintableInstructionSequence printable = {
           RegisterConfiguration::ArchDefault(), code};
       os << "----- Instruction sequence before register allocation -----\n"
          << printable;
@@ skipping 233 matching lines @@
   Handle<Object> result;
   bool has_pending_exception =
       !Execution::Call(isolate, t.function,
                        isolate->factory()->undefined_value(), 0, NULL,
                        false).ToHandle(&result);
   CHECK(!has_pending_exception);
   CHECK(result->SameValue(Smi::FromInt(42)));
 }
 
 #endif