[cleanup] Group empty global initializations

Bug: v8:8015, v8:7467
Change-Id: I0a25fdd7631447235839680c993505179a1cd793
Reviewed-on: https://chromium-review.googlesource.com/1238656Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Mathias Bynens <mathias@chromium.org>
Cr-Commit-Position: refs/heads/master@{#56291}

src/bootstrapper.cc

@@ -4327,6 +4327,7 @@ EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_dynamic_import)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_import_meta)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_numeric_separator)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_json_stringify)
+EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_regexp_sequence)
 
 #undef EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE
 
@@ -4775,8 +4776,6 @@ void Genesis::InitializeGlobal_harmony_intl_relative_time_format() {
 
 #endif  // V8_INTL_SUPPORT
 
-void Genesis::InitializeGlobal_harmony_regexp_sequence() {}
-
 Handle<JSFunction> Genesis::CreateArrayBuffer(
     Handle<String> name, ArrayBufferKind array_buffer_kind) {
   // Create the %ArrayBufferPrototype%