[Isolates] Convert more static data either to read-only or to per-isolate.

src/mark-compact.cc

 // Copyright 2006-2008 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 70 matching lines @@
 
   SweepLargeObjectSpace();
 
   if (IsCompacting()) {
     GCTracer::Scope gc_scope(tracer_, GCTracer::Scope::MC_COMPACT);
     EncodeForwardingAddresses();
 
     heap_->MarkMapPointersAsEncoded(true);
     UpdatePointers();
     heap_->MarkMapPointersAsEncoded(false);
-    PcToCodeCache::FlushPcToCodeCache();
+    heap_->isolate()->pc_to_code_cache()->Flush();
 
     RelocateObjects();
   } else {
     SweepSpaces();
-    PcToCodeCache::FlushPcToCodeCache();
+    heap_->isolate()->pc_to_code_cache()->Flush();
   }
 
   Finish();
 
   // Save the count of marked objects remaining after the collection and
   // null out the GC tracer.
   previous_marked_count_ = tracer_->marked_count();
   ASSERT(previous_marked_count_ == 0);
   tracer_ = NULL;
 }
@@ skipping 2590 matching lines @@
 }
 
 
 void MarkCompactCollector::Initialize() {
   StaticPointersToNewGenUpdatingVisitor::Initialize();
   StaticMarkingVisitor::Initialize();
 }
 
 
 } }  // namespace v8::internal