Thread/Isolate refactoring: new(Isolate) -> new(Zone)

runtime/vm/flow_graph_compiler.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_FLOW_GRAPH_COMPILER_H_
 #define VM_FLOW_GRAPH_COMPILER_H_
 
 #include "vm/allocation.h"
 #include "vm/assembler.h"
 #include "vm/code_descriptors.h"
@@ skipping 503 matching lines @@
   const ICData* GetOrAddStaticCallICData(intptr_t deopt_id,
                                          const Function& target,
                                          const Array& arguments_descriptor,
                                          intptr_t num_args_tested);
 
   const ZoneGrowableArray<const ICData*>& deopt_id_to_ic_data() const {
     return *deopt_id_to_ic_data_;
   }
 
   Isolate* isolate() const { return isolate_; }
+  Zone* zone() const { return zone_; }
 
   void AddStubCallTarget(const Code& code);
 
   const Array& inlined_code_intervals() const {
     ASSERT(inlined_code_intervals_ != NULL);
     return *inlined_code_intervals_;
   }
 
   RawArray* InliningIdToFunction() const;
 
@@ skipping 112 matching lines @@
 
 #if defined(DEBUG)
   void FrameStateUpdateWith(Instruction* instr);
   void FrameStatePush(Definition* defn);
   void FrameStatePop(intptr_t count);
   bool FrameStateIsSafeToCall();
   void FrameStateClear();
 #endif
 
   Isolate* isolate_;
+  Zone* zone_;
   Assembler* assembler_;
   const ParsedFunction& parsed_function_;
   const FlowGraph& flow_graph_;
   const GrowableArray<BlockEntryInstr*>& block_order_;
 
 #if defined(DEBUG)
   GrowableArray<Representation> frame_state_;
 #endif
 
   // Compiler specific per-block state.  Indexed by postorder block number
@@ skipping 42 matching lines @@
   const Array* inlined_code_intervals_;
   const GrowableArray<const Function*>& inline_id_to_function_;
   const GrowableArray<intptr_t>& caller_inline_id_;
 
   DISALLOW_COPY_AND_ASSIGN(FlowGraphCompiler);
 };
 
 }  // namespace dart
 
 #endif  // VM_FLOW_GRAPH_COMPILER_H_