Fix pc to code cache so it can cope with a pointer to the start of the code

src/isolate.h

Index: src/isolate.h
===================================================================
--- src/isolate.h	(revision 9328)
+++ src/isolate.h	(working copy)
@@ -66,7 +66,7 @@
 class HeapProfiler;
 class InlineRuntimeFunctionsTable;
 class NoAllocationStringAllocator;
-class PcToCodeCache;
+class InnerPointerToCodeCache;
 class PreallocatedMemoryThread;
 class RegExpStack;
 class SaveContext;
@@ -841,7 +841,9 @@
     return unicode_cache_;
   }
 
-  PcToCodeCache* pc_to_code_cache() { return pc_to_code_cache_; }
+  InnerPointerToCodeCache* inner_pointer_to_code_cache() {
+    return inner_pointer_to_code_cache_;
+  }
 
   StringInputBuffer* write_input_buffer() { return write_input_buffer_; }
 
@@ -1136,7 +1138,7 @@
   PreallocatedStorage in_use_list_;
   PreallocatedStorage free_list_;
   bool preallocated_storage_preallocated_;
-  PcToCodeCache* pc_to_code_cache_;
+  InnerPointerToCodeCache* inner_pointer_to_code_cache_;
   StringInputBuffer* write_input_buffer_;
   GlobalHandles* global_handles_;
   ContextSwitcher* context_switcher_;