Add segmentation test for religious and political symbols

After feedback in
https://twitter.com/TiroTypeworks/status/1007383133061185536 ensure that
the mentioned characters are segmented correctly.

Cq-Include-Trybots: luci.chromium.try:linux_layout_tests_layout_ng
Change-Id: If9013658c6309678556ba87f39c1c9923acb86d7
Reviewed-on: https://chromium-review.googlesource.com/1105047
Commit-Queue: Koji Ishii <kojii@chromium.org>
Reviewed-by: Koji Ishii <kojii@chromium.org>
Cr-Commit-Position: refs/heads/master@{#568460}

third_party/blink/renderer/platform/fonts/shaping/run_segmenter_test.cc

@@ -241,4 +241,15 @@ TEST_F(RunSegmenterTest, EmojiSubdivisionFlags) {
         FontFallbackPriority::kEmojiEmoji}});
 }
 
+TEST_F(RunSegmenterTest, NonEmojiPresentationSymbols) {
+  CheckRunsHorizontal(
+      {{u8"\U00002626\U0000262a\U00002638\U0000271d\U00002721", USCRIPT_COMMON,
+        OrientationIterator::kOrientationKeep,
+        FontFallbackPriority::kEmojiText},
+       {u8"\U00002627\U00002628\U00002629\U0000262b\U0000262c\U00002670"
+        "\U00002671\U0000271f\U00002720",
+        USCRIPT_COMMON, OrientationIterator::kOrientationKeep,
+        FontFallbackPriority::kText}});
+}
+
 }  // namespace blink