Remove the dependency of Zone on Isolate

src/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/v8.h"
 
 #include "src/bootstrapper.h"
 #include "src/codegen.h"
 #include "src/compiler.h"
 #include "src/cpu-profiler.h"
@@ skipping 107 matching lines @@
     } else {
       AllowDeferredHandleDereference allow_deference_for_trace;
       PrintF("%s", info->function()->debug_name()->ToCString().get());
     }
     PrintF("]\n");
   }
 
 #ifdef DEBUG
   if (!info->IsStub() && print_source) {
     PrintF("--- Source from AST ---\n%s\n",
-           PrettyPrinter(info->zone()).PrintProgram(info->function()));
+           PrettyPrinter(info->isolate(), info->zone())
+               .PrintProgram(info->function()));
   }
 
   if (!info->IsStub() && print_ast) {
-    PrintF("--- AST ---\n%s\n",
-           AstPrinter(info->zone()).PrintProgram(info->function()));
+    PrintF("--- AST ---\n%s\n", AstPrinter(info->isolate(), info->zone())
+                                    .PrintProgram(info->function()));
   }
 #endif  // DEBUG
 }
 
 
 Handle<Code> CodeGenerator::MakeCodeEpilogue(MacroAssembler* masm,
                                              Code::Flags flags,
                                              CompilationInfo* info) {
   Isolate* isolate = info->isolate();
 
@@ skipping 83 matching lines @@
     masm->positions_recorder()->RecordStatementPosition(pos);
     masm->positions_recorder()->RecordPosition(pos);
     if (right_here) {
       return masm->positions_recorder()->WriteRecordedPositions();
     }
   }
   return false;
 }
 
 } }  // namespace v8::internal