VM [KERNEL] Fix performance issue in KernelReader

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 58 matching lines @@
  private:
   friend class BuildingTranslationHelper;
 
   void ReadPreliminaryClass(dart::Class* klass, Class* kernel_klass);
   dart::Class& ReadClass(const dart::Library& library,
                          const dart::Class& toplevel_class,
                          Class* kernel_klass);
   void ReadProcedure(const dart::Library& library,
                      const dart::Class& owner,
                      Procedure* procedure,
-                     Class* kernel_klass = NULL);
+                     Class* kernel_klass);
+
+  RawArray* MakeFunctionsArray();
 
   // If klass's script is not the script at the uri index, return a PatchClass
   // for klass whose script corresponds to the uri index.
   // Otherwise return klass.
   const Object& ClassForScriptAt(const dart::Class& klass,
                                  intptr_t source_uri_index);
   Script& ScriptAt(intptr_t source_uri_index, String* import_uri = NULL);
 
   void GenerateFieldAccessors(const dart::Class& klass,
                               const dart::Field& field,
@@ skipping 12 matching lines @@
   dart::Thread* thread_;
   dart::Zone* zone_;
   dart::Isolate* isolate_;
   Array& scripts_;
   ActiveClass active_class_;
   BuildingTranslationHelper translation_helper_;
   DartTypeTranslator type_translator_;
 
   Mapping<CanonicalName, dart::Library> libraries_;
   Mapping<CanonicalName, dart::Class> classes_;
+
+  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_