Minor refactorings to use some recently added methods.

src/compilation-cache.cc

 // Copyright 2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 200 matching lines @@
   tables_[0] = Heap::undefined_value();
 }
 
 
 void CompilationSubCache::Iterate(ObjectVisitor* v) {
   v->VisitPointers(&tables_[0], &tables_[generations_]);
 }
 
 
 void CompilationSubCache::Clear() {
-  for (int i = 0; i < generations_; i++) {
-    tables_[i] = Heap::undefined_value();
-  }
+  MemsetPointer(tables_, Heap::undefined_value(), generations_);
 }
 
 
 // We only re-use a cached function for some script source code if the
 // script originates from the same place. This is to avoid issues
 // when reporting errors, etc.
 bool CompilationCacheScript::HasOrigin(Handle<JSFunction> boilerplate,
                                        Handle<Object> name,
                                        int line_offset,
                                        int column_offset) {
@@ skipping 289 matching lines @@
 }
 
 
 void CompilationCache::Disable() {
   enabled = false;
   Clear();
 }
 
 
 } }  // namespace v8::internal