Remove the dependency of Zone on Isolate

test/cctest/compiler/test-instruction.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 37 matching lines @@
   Zone* zone() { return main_zone(); }
 
   void allocCode() {
     if (schedule.rpo_order()->size() == 0) {
       // Compute the RPO order.
       Scheduler::ComputeSpecialRPO(main_zone(), &schedule);
       DCHECK(schedule.rpo_order()->size() > 0);
     }
     InstructionBlocks* instruction_blocks =
         TestInstrSeq::InstructionBlocksFor(main_zone(), &schedule);
-    code = new (main_zone()) TestInstrSeq(main_zone(), instruction_blocks);
+    code = new (main_zone())
+        TestInstrSeq(main_isolate(), main_zone(), instruction_blocks);
   }
 
   Node* Int32Constant(int32_t val) {
     Node* node = graph.NewNode(common.Int32Constant(val));
     schedule.AddNode(schedule.start(), node);
     return node;
   }
 
   Node* Float64Constant(double val) {
     Node* node = graph.NewNode(common.Float64Constant(val));
@@ skipping 212 matching lines @@
     const ZoneList<MoveOperands>* move_operands = move->move_operands();
     CHECK_EQ(1, move_operands->length());
     MoveOperands* cur = &move_operands->at(0);
     CHECK_EQ(op1, cur->source());
     CHECK_EQ(op2, cur->destination());
   }
 }
 
 
 TEST(InstructionOperands) {
-  Zone zone(CcTest::InitIsolateOnce());
+  Zone zone;
 
   {
     TestInstr* i = TestInstr::New(&zone, 101);
     CHECK_EQ(0, static_cast<int>(i->OutputCount()));
     CHECK_EQ(0, static_cast<int>(i->InputCount()));
     CHECK_EQ(0, static_cast<int>(i->TempCount()));
   }
 
   InstructionOperand* outputs[] = {
       new (&zone) UnallocatedOperand(UnallocatedOperand::MUST_HAVE_REGISTER),
@@ skipping 30 matching lines @@
           CHECK_EQ(inputs[z], m->InputAt(z));
         }
 
         for (size_t z = 0; z < k; z++) {
           CHECK_EQ(temps[z], m->TempAt(z));
         }
       }
     }
   }
 }