Serializer: another small reorder of root objects.

src/heap/heap.h

Index: src/heap/heap.h
diff --git a/src/heap/heap.h b/src/heap/heap.h
index 0e12d2b64afabd3ee297fdb2e0add7fce128135c..a2fa8832f3b2f69663bd1e3aef4d1a59730b7e70 100644
--- a/src/heap/heap.h
+++ b/src/heap/heap.h
@@ -54,7 +54,7 @@ namespace internal {
   V(Map, weak_cell_map, WeakCellMap)                                           \
   V(Map, one_byte_string_map, OneByteStringMap)                                \
   V(Map, one_byte_internalized_string_map, OneByteInternalizedStringMap)       \
-  V(Map, cons_one_byte_string_map, ConsOneByteStringMap)                       \
+  V(Map, function_context_map, FunctionContextMap)                             \
   V(FixedArray, empty_fixed_array, EmptyFixedArray)                            \
   V(ByteArray, empty_byte_array, EmptyByteArray)                               \
   V(DescriptorArray, empty_descriptor_array, EmptyDescriptorArray)             \
@@ -78,6 +78,7 @@ namespace internal {
   V(Map, ordered_hash_table_map, OrderedHashTableMap)                          \
   V(Map, symbol_map, SymbolMap)                                                \
   V(Map, string_map, StringMap)                                                \
+  V(Map, cons_one_byte_string_map, ConsOneByteStringMap)                       \
   V(Map, cons_string_map, ConsStringMap)                                       \
   V(Map, sliced_string_map, SlicedStringMap)                                   \
   V(Map, sliced_one_byte_string_map, SlicedOneByteStringMap)                   \
@@ -141,7 +142,6 @@ namespace internal {
   V(FixedTypedArrayBase, empty_fixed_uint8_clamped_array,                      \
     EmptyFixedUint8ClampedArray)                                               \
   V(Map, sloppy_arguments_elements_map, SloppyArgumentsElementsMap)            \
-  V(Map, function_context_map, FunctionContextMap)                             \
   V(Map, catch_context_map, CatchContextMap)                                   \
   V(Map, with_context_map, WithContextMap)                                     \
   V(Map, block_context_map, BlockContextMap)                                   \