Clean-up CodeGenState: remove unused loop_level and move context_level to CodeGenerator (and add it…

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 "vm/allocation.h"
 #include "vm/ast.h"
 #include "vm/growable_array.h"
@@ skipping 14 matching lines @@
   void BuildGraph();
 
   const ParsedFunction& parsed_function() const { return parsed_function_; }
 
   const GrowableArray<BlockEntryInstr*>* blocks() const {
     return &postorder_block_entries_;
   }
 
   void Bailout(const char* reason);
 
+  void set_context_level(intptr_t value) { context_level_ = value; }
+  intptr_t context_level() const { return context_level_; }
+
  private:
   const ParsedFunction& parsed_function_;
   GrowableArray<BlockEntryInstr*> postorder_block_entries_;
+  intptr_t context_level_;
 };
 
 
 class TestGraphVisitor;
 
 // Translate an AstNode to a control-flow graph fragment for its effects
 // (e.g., a statement or an expression in an effect context).  Implements a
 // function from an AstNode and next temporary index to a graph fragment
 // with a single entry and at most one exit.  The fragment is represented by
 // an (entry, exit) pair of Instruction pointers:
@@ skipping 210 matching lines @@
   }
 
   // Output parameters.
   BlockEntryInstr** true_successor_address_;
   BlockEntryInstr** false_successor_address_;
 };
 
 }  // namespace dart
 
 #endif  // VM_FLOW_GRAPH_BUILDER_H_