Changes to interpret the optimizable bit based on whether the function

runtime/vm/code_generator.cc

 // Copyright (c) 2013, 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/code_generator.h"
 
 #include "vm/assembler.h"
 #include "vm/ast.h"
 #include "vm/bigint_operations.h"
 #include "vm/code_patcher.h"
@@ skipping 1258 matching lines @@
         break;
       }
       token = strtok_r(NULL, ",", &save_ptr);
     }
     delete[] filter;
     if (!found) {
       function.set_usage_counter(kLowInvocationCount);
       return false;
     }
   }
-  if (!function.is_optimizable()) {
+  if (!function.IsOptimizable()) {
     if (FLAG_trace_failed_optimization_attempts) {
       OS::PrintErr("Not Optimizable: %s\n", function.ToFullyQualifiedCString());
     }
     // TODO(5442338): Abort as this should not happen.
     function.set_usage_counter(kLowInvocationCount);
     return false;
   }
   return true;
 }
 
@@ skipping 425 matching lines @@
 // of the given value.
 //   Arg0: Field object;
 //   Arg1: Value that is being stored.
 DEFINE_RUNTIME_ENTRY(UpdateFieldCid, 2) {
   const Field& field = Field::CheckedHandle(arguments.ArgAt(0));
   const Object& value = Object::Handle(arguments.ArgAt(1));
   field.UpdateGuardedCidAndLength(value);
 }
 
 }  // namespace dart