Pass field to mutator thread so that it can be marked as boxed and all dependent code deoptimized

runtime/vm/compiler.cc

 // 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.
 
 #include "vm/compiler.h"
 
 #include "vm/assembler.h"
 
 #include "vm/ast_printer.h"
 #include "vm/block_scheduler.h"
@@ skipping 618 matching lines @@
                                   "BuildFlowGraph");
 #endif  // !PRODUCT
         flow_graph = pipeline->BuildFlowGraph(zone,
                                               parsed_function(),
                                               *ic_data_array,
                                               osr_id());
       }
 
       const bool print_flow_graph =
           (FLAG_print_flow_graph ||
-           (optimized() && FLAG_print_flow_graph_optimized)) &&
+              (optimized() && FLAG_print_flow_graph_optimized)) &&

[siva, 2016/02/10 17:57:35]

indentation seems off over here.

[srdjan, 2016/02/10 19:18:51]

Done.

           FlowGraphPrinter::ShouldPrint(function);
 
       if (print_flow_graph) {
         if (osr_id() == Compiler::kNoOSRDeoptId) {
           FlowGraphPrinter::PrintGraph("Before Optimizations", flow_graph);
         } else {
           FlowGraphPrinter::PrintGraph("For OSR", flow_graph);
         }
       }
 
@@ skipping 1234 matching lines @@
 }
 
 
 void BackgroundCompiler::EnsureInit(Thread* thread) {
   UNREACHABLE();
 }
 
 #endif  // DART_PRECOMPILED_RUNTIME
 
 }  // namespace dart