Remove the dependency of Zone on Isolate

src/compiler/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/compiler/common-operator.h"
 #include "src/compiler/graph.h"
 #include "src/compiler/instruction.h"
 
 namespace v8 {
 namespace internal {
@@ skipping 412 matching lines @@
     }
   }
   for (auto const block : *blocks) {
     if (block->IsDeferred()) {
       block->set_ao_number(BasicBlock::RpoNumber::FromInt(ao++));
     }
   }
 }
 
 
-InstructionSequence::InstructionSequence(Zone* instruction_zone,
+InstructionSequence::InstructionSequence(Isolate* isolate,
+                                         Zone* instruction_zone,
                                          InstructionBlocks* instruction_blocks)
-    : zone_(instruction_zone),
+    : isolate_(isolate),
+      zone_(instruction_zone),
       instruction_blocks_(instruction_blocks),
       block_starts_(zone()),
       constants_(ConstantMap::key_compare(),
                  ConstantMap::allocator_type(zone())),
       immediates_(zone()),
       instructions_(zone()),
       next_virtual_register_(0),
       pointer_maps_(zone()),
       doubles_(std::less<int>(), VirtualRegisterSet::allocator_type(zone())),
       references_(std::less<int>(), VirtualRegisterSet::allocator_type(zone())),
@@ skipping 245 matching lines @@
       os << " B" << succ_block->id();
     }
     os << "\n";
   }
   return os;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8