[heap] reorder empty scope info in the root list.

src/heap/heap.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_HEAP_HEAP_H_
 #define V8_HEAP_HEAP_H_
 
 #include <cmath>
 #include <map>
 
@@ skipping 47 matching lines @@
   V(Map, heap_number_map, HeapNumberMap)                                       \
   V(Map, transition_array_map, TransitionArrayMap)                             \
   V(FixedArray, empty_literals_array, EmptyLiteralsArray)                      \
   V(FixedArray, empty_type_feedback_vector, EmptyTypeFeedbackVector)           \
   V(FixedArray, empty_fixed_array, EmptyFixedArray)                            \
   V(DescriptorArray, empty_descriptor_array, EmptyDescriptorArray)             \
   /* Entries beyond the first 32                                            */ \
   /* The roots above this line should be boring from a GC point of view.    */ \
   /* This means they are never in new space and never on a page that is     */ \
   /* being compacted.                                                       */ \
+  /* Empty scope info */                                                       \
+  V(ScopeInfo, empty_scope_info, EmptyScopeInfo)                               \
   /* Oddballs */                                                               \
   V(Oddball, no_interceptor_result_sentinel, NoInterceptorResultSentinel)      \
   V(Oddball, arguments_marker, ArgumentsMarker)                                \
   V(Oddball, exception, Exception)                                             \
   V(Oddball, termination_exception, TerminationException)                      \
   V(Oddball, optimized_out, OptimizedOut)                                      \
   V(Oddball, stale_register, StaleRegister)                                    \
   /* Context maps */                                                           \
   V(Map, native_context_map, NativeContextMap)                                 \
   V(Map, module_context_map, ModuleContextMap)                                 \
@@ skipping 55 matching lines @@
   V(Map, int32x4_map, Int32x4Map)                                              \
   V(Map, uint32x4_map, Uint32x4Map)                                            \
   V(Map, bool32x4_map, Bool32x4Map)                                            \
   V(Map, int16x8_map, Int16x8Map)                                              \
   V(Map, uint16x8_map, Uint16x8Map)                                            \
   V(Map, bool16x8_map, Bool16x8Map)                                            \
   V(Map, int8x16_map, Int8x16Map)                                              \
   V(Map, uint8x16_map, Uint8x16Map)                                            \
   V(Map, bool8x16_map, Bool8x16Map)                                            \
   /* Canonical empty values */                                                 \
-  V(ScopeInfo, empty_scope_info, EmptyScopeInfo)                               \
   V(ByteArray, empty_byte_array, EmptyByteArray)                               \
   V(FixedTypedArrayBase, empty_fixed_uint8_array, EmptyFixedUint8Array)        \
   V(FixedTypedArrayBase, empty_fixed_int8_array, EmptyFixedInt8Array)          \
   V(FixedTypedArrayBase, empty_fixed_uint16_array, EmptyFixedUint16Array)      \
   V(FixedTypedArrayBase, empty_fixed_int16_array, EmptyFixedInt16Array)        \
   V(FixedTypedArrayBase, empty_fixed_uint32_array, EmptyFixedUint32Array)      \
   V(FixedTypedArrayBase, empty_fixed_int32_array, EmptyFixedInt32Array)        \
   V(FixedTypedArrayBase, empty_fixed_float32_array, EmptyFixedFloat32Array)    \
   V(FixedTypedArrayBase, empty_fixed_float64_array, EmptyFixedFloat64Array)    \
   V(FixedTypedArrayBase, empty_fixed_uint8_clamped_array,                      \
@@ skipping 2489 matching lines @@
   }
 
  private:
   Heap* heap_;
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_HEAP_HEAP_H_