Do not emit coverage/callsite info for implicit closure functions.

runtime/vm/coverage.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/coverage.h"
 
 #include "include/dart_api.h"
 
 #include "vm/compiler.h"
 #include "vm/isolate.h"
@@ skipping 167 matching lines @@
       url = script.url();
       if (!url.Equals(saved_url)) {
         pos_to_line.Clear();
         break;
       }
       if (!filter->ShouldOutputCoverageFor(lib, script, cls, function)) {
         i++;
         continue;
       }
       CompileAndAdd(function, hits_or_sites, pos_to_line, as_call_sites);
-      if (function.HasImplicitClosureFunction()) {
-        function = function.ImplicitClosureFunction();
-        CompileAndAdd(function, hits_or_sites, pos_to_line, as_call_sites);
-      }
       i++;
     }
   }
 
   GrowableObjectArray& closures =
       GrowableObjectArray::Handle(cls.closures());
   if (!closures.IsNull()) {
     i = 0;
     pos_to_line.Clear();
     // We need to keep rechecking the length of the closures array, as handling
@@ skipping 86 matching lines @@
         cls = it.GetNextClass();
         ASSERT(!cls.IsNull());
         PrintClass(lib, cls, jsarr, filter, as_call_sites);
       }
     }
   }
 }
 
 
 }  // namespace dart