Allow setting breakpoints in function literal field initializers under --dfe.

runtime/vm/kernel_reader.h

 // Copyright (c) 2016, 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 RUNTIME_VM_KERNEL_READER_H_
 #define RUNTIME_VM_KERNEL_READER_H_
 
 #if !defined(DART_PRECOMPILED_RUNTIME)
 #include <map>
 
@@ skipping 76 matching lines @@
                       (program_->library_count() - index) * 4);
     reader.set_offset(reader.ReadUInt32());
 
     // Start reading library.
     reader.ReadFlags();  // read flags.
     return reader.ReadCanonicalNameReference();
   }
 
   uint8_t CharacterAt(StringIndex string_index, intptr_t index);
 
+  static bool FieldHasFunctionLiteralInitializer(const dart::Field& field,
+                                                 TokenPosition* start,
+                                                 TokenPosition* end);
+
  private:
   friend class BuildingTranslationHelper;
 
   void ReadPreliminaryClass(dart::Class* klass,
                             ClassHelper* class_helper,
                             intptr_t type_parameter_count);
   dart::Class& ReadClass(const dart::Library& library,
                          const dart::Class& toplevel_class);
   void ReadProcedure(const dart::Library& library,
                      const dart::Class& owner,
@@ skipping 38 matching lines @@
 
   GrowableArray<const dart::Function*> functions_;
   GrowableArray<const dart::Field*> fields_;
 };
 
 }  // namespace kernel
 }  // namespace dart
 
 #endif  // !defined(DART_PRECOMPILED_RUNTIME)
 #endif  // RUNTIME_VM_KERNEL_READER_H_