Moved zones and zone related stuff in its own directory.

test/cctest/test-liveedit.cc

Index: test/cctest/test-liveedit.cc
diff --git a/test/cctest/test-liveedit.cc b/test/cctest/test-liveedit.cc
index bae3ed5ac44023b9a6036fbe9d279059f32502d3..6cc6c702141fd4e8cbfb6d39dd4c15e95e97051f 100644
--- a/test/cctest/test-liveedit.cc
+++ b/test/cctest/test-liveedit.cc
@@ -95,7 +95,7 @@ void CompareStringsOneWay(const char* s1, const char* s2,
                           int expected_diff_parameter = -1) {
   StringCompareInput input(s1, s2);
 
-  v8::base::AccountingAllocator allocator;
+  v8::internal::AccountingAllocator allocator;
   Zone zone(&allocator);
 
   DiffChunkStruct* first_chunk;