message: Edit environmental_filter_rewriter for addition of hieroglyphs.
  This is a followup to cl/474187079.
diff: @@ -121,7 +121,7 @@ std::vector<AdditionalRenderableCharacterGroup> GetNonrenderableGroups(
  const ::mozc::protobuf::RepeatedField<int> &additional_groups) {
  // WARNING: Though it is named k'All'Cases, 'Empty' is intentionally omitted
  // here. All other cases should be added.
  - constexpr std::array<AdditionalRenderableCharacterGroup, 9> kAllCases = {
  + constexpr std::array<AdditionalRenderableCharacterGroup, 10> kAllCases = {
  commands::Request::KANA_SUPPLEMENT_6_0,
  commands::Request::KANA_SUPPLEMENT_AND_KANA_EXTENDED_A_10_0,
  commands::Request::KANA_EXTENDED_A_14_0,
  @@ -130,6 +130,7 @@ std::vector<AdditionalRenderableCharacterGroup> GetNonrenderableGroups(
  commands::Request::EMOJI_13_1,
  commands::Request::EMOJI_14_0,
  commands::Request::EMOJI_15_0,
  + commands::Request::EGYPTIAN_HIEROGLYPH_5_2,
  commands::Request::IVS_CHARACTER,
  };
  