Use isolate when allocation Zone objects and handles: focus on FlowGraphOptimizer, next inliner.

runtime/vm/flow_graph_builder.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_BUILDER_H_
 #define VM_FLOW_GRAPH_BUILDER_H_
 
 #include "platform/assert.h"
 #include "platform/globals.h"
 #include "vm/allocation.h"
 #include "vm/ast.h"
+#include "vm/flow_graph.h"
 #include "vm/growable_array.h"
 #include "vm/intermediate_language.h"
 #include "vm/raw_object.h"
 
 namespace dart {
 
 class AbstractType;
 class Array;
 class Class;
 class Field;
-class FlowGraph;
 class LocalVariable;
 class ParsedFunction;
 class String;
 class TypeArguments;
 
 class NestedStatement;
 class TestGraphVisitor;
 
 // List of recognized list factories:
 // (factory-name-symbol, result-cid, fingerprint).
@@ skipping 89 matching lines @@
   ReturnInstr* ReturnAt(intptr_t i) const {
     return exits_[i].exit_return;
   }
 
   static int LowestBlockIdFirst(const Data* a, const Data* b);
   void SortExits();
 
   Definition* JoinReturns(BlockEntryInstr** exit_block,
                           Instruction** last_instruction);
 
+  Isolate* isolate() const { return caller_graph_->isolate(); }
+
   FlowGraph* caller_graph_;
   Definition* call_;
   GrowableArray<Data> exits_;
 };
 
 
 // Build a flow graph from a parsed function's AST.
 class FlowGraphBuilder: public ValueObject {
  public:
   // The inlining context is NULL if not inlining.  The osr_id is the deopt
@@ skipping 434 matching lines @@
   // Output parameters.
   GrowableArray<TargetEntryInstr**> true_successor_addresses_;
   GrowableArray<TargetEntryInstr**> false_successor_addresses_;
 
   intptr_t condition_token_pos_;
 };
 
 }  // namespace dart
 
 #endif  // VM_FLOW_GRAPH_BUILDER_H_