Cache compile-time constants on the script object, sometimes.

runtime/vm/isolate_reload.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 VM_ISOLATE_RELOAD_H_
 #define VM_ISOLATE_RELOAD_H_
 
 #include "vm/globals.h"
 #include "vm/growable_array.h"
 #include "vm/log.h"
@@ skipping 94 matching lines @@
 #ifdef DEBUG
   void VerifyMaps();
 #endif
 
   void Commit();
 
   void PostCommit();
 
   void ClearReplacedObjectBits();
 
-  void BuildCleanScriptSet();
-  void FilterCompileTimeConstants();
-
   // atomic_install:
   void MarkAllFunctionsForRecompilation();
   void ResetUnoptimizedICsOnStack();
   void ResetMegamorphicCaches();
   void InvalidateWorld();
 
   int64_t start_time_micros_;
   Isolate* isolate_;
   bool test_mode_;
   bool has_error_;
@@ skipping 23 matching lines @@
   void AddBecomeMapping(const Object& old, const Object& nue);
 
   void RebuildDirectSubclasses();
 
   RawClass* MappedClass(const Class& replacement_or_new);
   RawLibrary* MappedLibrary(const Library& replacement_or_new);
 
   RawObject** from() { return reinterpret_cast<RawObject**>(&script_uri_); }
   RawString* script_uri_;
   RawError* error_;
-  RawArray* clean_scripts_set_storage_;
-  RawArray* compile_time_constants_;
   RawArray* old_classes_set_storage_;
   RawArray* class_map_storage_;
   RawArray* old_libraries_set_storage_;
   RawArray* library_map_storage_;
   RawArray* become_map_storage_;
   RawLibrary* saved_root_library_;
   RawGrowableObjectArray* saved_libraries_;
   RawObject** to() { return reinterpret_cast<RawObject**>(&saved_libraries_); }
 
   friend class Isolate;
   friend class Class;  // AddStaticFieldMapping.
 };
 
 }  // namespace dart
 
 #endif   // VM_ISOLATE_RELOAD_H_